Threats, Cyberattacks & Vulnerabilities
Top Stories
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Tip
29 Jul 2026
What to know about deepfake phishing simulation software
Deepfake phishing simulation software uses AI to probe organizational resistance to state-of-the-art social engineering attacks. Learn why they should be on CISOs' radar. Continue Reading
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News
23 Jul 2026
OpenAI models escape containment, hack Hugging Face
In an unprecedented -- and unintended -- cyberattack, frontier AI models autonomously escaped their contained testing environment and breached another company's systems. Continue Reading
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News
02 Nov 2023
Zscaler finds 117 Microsoft 365 bugs via SketchUp 3D file type
Microsoft published patches to address all 117 Microsoft 365 Apps flaws disclosed Tuesday, and the tech giant has disabled support for SketchUp, or SKP, 3D model files. Continue Reading
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Podcast
01 Nov 2023
Risk & Repeat: Breaking down SEC charges against SolarWinds
This episode covers the SEC charges against SolarWinds and CISO Timothy Brown for allegedly hiding known cybersecurity risks prior to the 2020 supply chain attack it suffered. Continue Reading
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News
31 Oct 2023
No patches yet for Apple iLeakage side-channel attack
Apple said it is working on more complete fixes for the iLeakage side-channel attack technique, but only one partial mitigation is currently available to macOS customers. Continue Reading
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News
31 Oct 2023
SEC charges SolarWinds for security failures, fraud
The SEC accused SolarWinds and CISO Timothy Brown of hiding known cybersecurity risks that were further highlighted by the supply chain attack revealed in 2020. Continue Reading
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News
31 Oct 2023
Dual ransomware attacks on the rise, but causes are unclear
While the FBI warned enterprises of an increase in dual ransomware attacks, infosec experts said there's insufficient data to consider the threat a trend. Continue Reading
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News
26 Oct 2023
NCC Group details 153% spike in September ransomware attacks
NCC Group analysts warned the significant year-over-year increase will likely continue. Organizations may see 4,000 ransomware attacks by the end of 2023. Continue Reading
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News
24 Oct 2023
Cisco IOS XE instances still under attack, patch now
In the days since Cisco's initial disclosure, the networking giant found a second Cisco IOS XE zero-day as well as new evasion techniques being utilized by threat actors. Continue Reading
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Definition
24 Oct 2023
Plundervolt
Plundervolt is the name of an undervolting attack that targeted Intel central processing units (CPUs). Continue Reading
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News
23 Oct 2023
Okta customer support system breached via stolen credentials
During the latest breach against the identity and access management vendor, attackers took advantage of the system intended to provide support for Okta customers. Continue Reading
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News
19 Oct 2023
North Korean hackers exploit critical TeamCity vulnerability
While a patch is available, Microsoft and JetBrains confirmed TeamCity users have been compromised in attacks that leverage CVE-2023-42793 as an initial attack vector. Continue Reading
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News
18 Oct 2023
Mandiant: Citrix zero-day actively exploited since August
Exploitation against CVE-2023-4966 is ongoing, and Mandiant CTO Charles Carmakal warned patching alone is insufficient against potential attacks that leverage MFA bypass techniques. Continue Reading
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News
17 Oct 2023
Cisco IOS XE zero-day facing mass exploitation
VulnCheck said its public scanning for CVE-2023-20198 revealed that 'thousands' of internet-facing Cisco IOS XE systems have been compromised with malicious implants. Continue Reading
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News
16 Oct 2023
Cisco working on fix for critical IOS XE zero-day
Cisco designated the bug, CVE-2023-20198, with a CVSS score of 10 and said it was working on a patch, but advised customers to apply mitigations in the meantime. Continue Reading
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News
13 Oct 2023
Ransomware gang targets critical Progress WS_FTP Server bug
The vulnerability used in the failed ransomware attack, CVE-2023-40044, is a .NET deserialization vulnerability in Progress Software's WS_FTP Server with a CVSS score of 10. Continue Reading
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Podcast
12 Oct 2023
Risk & Repeat: Rapid Reset and the future of DDoS attacks
This podcast episode covers the record-breaking DDoS attack Rapid Reset, why it stands out among other DDoS campaigns and whether it will be widely replicated in the future. Continue Reading
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News
10 Oct 2023
'Rapid Reset' DDoS attacks exploiting HTTP/2 vulnerability
Cloudflare said the Rapid Reset DDoS attack was three times larger than the attack it had on record. Google similarly called it 'the largest DDoS attack to date.' Continue Reading
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News
06 Oct 2023
MGM faces $100M loss from ransomware attack
MGM's 8-K filing revealed some personal customer data was stolen during the September attack and said the company expects cyber insurance to sufficiently cover the losses. Continue Reading
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News
04 Oct 2023
Critical Atlassian Confluence zero-day flaw under attack
Collaboration software vendor Atlassian urged customers with affected versions of Confluence Data Center and Server to apply patches for CVE-2023-22515 immediately. Continue Reading
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News
03 Oct 2023
Spyware vendor exploiting kernel flaw in Arm Mali GPU drivers
Arm Mali GPUs affected by CVE-2023-4211, which was discovered by Google researchers, include a wide range of Android phones as well as ChromeOS devices such as Chromebooks. Continue Reading
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News
03 Oct 2023
Ransomware disrupts hospitality, healthcare in September
Ransomware disclosures and reports last month were headlined by attacks on MGM Resorts and Caesars Entertainment, which proved costly to the Las Vegas hospitality giants. Continue Reading
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News
02 Oct 2023
Openwall patches 3 of 6 Exim zero-day flaws
The Openwall Project urged users to upgrade to the latest version of Exim, but there have been timely patching struggles with the message transfer agent software in the past. Continue Reading
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Definition
02 Oct 2023
voice squatting
Voice squatting is an attack vector for voice user interfaces, or VUIs, that exploits homonyms -- words that sound the same, but are spelled differently -- and input errors -- words that are mispronounced. Continue Reading
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Tip
29 Sep 2023
5 common browser attacks and how to prevent them
Browsers are critical components of any organization, especially with the rise of web apps. Security teams and users must, therefore, know how to avoid common browser attacks. Continue Reading
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News
28 Sep 2023
US, Japan warn China-linked 'BlackTech' targeting routers
CISA said BlackTech has targeted Cisco and other router makers by using a variety of tools and techniques to modify and even replace devices' firmware. Continue Reading
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News
28 Sep 2023
Cisco patches zero-day vulnerability under attack
Cisco said its Advanced Security Initiatives Group discovered the zero-day flaw while investigating attempted attacks on the vendor's Group Encrypted Transport VPN feature. Continue Reading
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News
26 Sep 2023
Clop MoveIt Transfer attacks affect over 2,000 organizations
According to research by security vendor Emsisoft, 2,095 organizations and 62,054,613 individuals have been affected by the Clop gang's attacks on MoveIt Transfer customers. Continue Reading
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News
25 Sep 2023
Dallas doles out $8.5M to remediate May ransomware attack
The city of Dallas provided a detailed attack timeline that showed Royal threat actors compromised a service account a month before ransomware was deployed. Continue Reading
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News
22 Sep 2023
Apple issues emergency patches for 3 zero-day bugs
Apple said CVE-2023-41992, CVE-2023-41991 and CVE-2023-41993 -- all reported by Citizen Lab and Google researchers -- might have been exploited against versions of iOS before 16.7. Continue Reading
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News
20 Sep 2023
Okta: Caesars, MGM hacked in social engineering campaign
Identity management vendor Okta had previously disclosed that four unnamed customers had fallen victim to a social engineering campaign that affected victims' MFA protections. Continue Reading
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News
20 Sep 2023
Cyber insurance report shows surge in ransomware claims
Coalition's H1 2023 report shows ransomware activity increased and severity reached "historic" highs as businesses lost an average of more than $365,000 following an attack. Continue Reading
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News
18 Sep 2023
Microsoft AI researchers mistakenly expose 38 TB of data
Microsoft said no customer data was affected by the Azure Storage exposure and 'no other internal services were put at risk because of this issue,' which has been mitigated. Continue Reading
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News
14 Sep 2023
Developer platform Retool breached in vishing attack
A successful vishing attack against a Retool employee led to account takeovers of 27 cloud customers, but the company is pointing the finger at Google. Continue Reading
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News
14 Sep 2023
Caesars Entertainment breached in social engineering attack
Caesars said it took steps after the breach to "ensure that the stolen data is deleted by the unauthorized actor," suggesting it paid a ransom to the attackers. Continue Reading
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News
14 Sep 2023
Palo Alto Networks: 80% of security exposures exist in cloud
It's no surprise that organizations struggle with cloud security, but a new report reveals an alarming split between cloud and on-premise security exposures. Continue Reading
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Podcast
12 Sep 2023
Risk & Repeat: Big questions remain on Storm-0558 attacks
Microsoft revealed that Storm-0558 threat actors stole a consumer signing key from its corporate network, but many questions about the breach and subsequent attacks remain. Continue Reading
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News
11 Sep 2023
Cisco VPN flaw faces attempted Akira ransomware attacks
Cisco said it became aware of 'attempted exploitation' last month and referenced an Aug. 24 security advisory saying its VPNs were under attack by the Akira ransomware gang. Continue Reading
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News
06 Sep 2023
Okta: 4 customers compromised in social engineering attacks
Okta said a threat actor convinced IT personnel at several customers to reset MFA factors for highly privileged users, though it's unclear how they accomplished that task. Continue Reading
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News
05 Sep 2023
Ransomware attacks on education sector spike in August
While data breach notifications for MoveIt Transfer customers continued to rise, August also saw ransomware ramp up against schools and universities as classes resumed. Continue Reading
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News
30 Aug 2023
FBI, Justice Department dismantle Qakbot malware
The FBI operation, one of the largest U.S.-led botnet disruption efforts ever, included international partners such as France, Germany, the Netherlands and the United Kingdom. Continue Reading
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News
29 Aug 2023
Mandiant reveals new backdoors used in Barracuda ESG attacks
Further investigations show threat actors were prepared for Barracuda Networks' remediation efforts, including an action notice to replace all compromised devices. Continue Reading
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News
29 Aug 2023
Cisco VPNs under attack via Akira, LockBit ransomware
Cisco and Rapid7 say ransomware actors LockBit and Akira have apparently been targeting Cisco VPNs not configured for multifactor authentication. Continue Reading
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News
24 Aug 2023
FBI: Suspected Chinese actors continue Barracuda ESG attacks
The alert comes after Barracuda Networks issued an advisory stating that patches for CVE-2023-2868 were insufficient and all affected ESG devices need to be replaced. Continue Reading
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News
23 Aug 2023
Sophos: RDP played a part in 95% of attacks in H1 2023
While Sophos observed increasing activity around Active Directory and Remote Desktop Protocol abuse, it recommended simple mitigation steps can limit the attack surface. Continue Reading
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News
22 Aug 2023
Ivanti issues fix for third zero-day flaw exploited in the wild
CVE-2023-38035 is the latest Ivanti zero-day vulnerability to be exploited in the wild. The vendor has released a series of remediation recommendations. Continue Reading
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News
21 Aug 2023
Vendors criticize Microsoft for repeated security failings
Microsoft is facing frustration for numerous security issues, including problematic transparency, numerous patch bypasses and inconsistent communication practices. Continue Reading
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News
17 Aug 2023
CISA, vendors warn Citrix ShareFile flaw under attack
A vulnerability in the managed file transfer product that enterprises use is being actively exploited two months after Citrix released a fix. Continue Reading
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News
10 Aug 2023
Palo Alto: SugarCRM zero-day reveals growing cloud threats
Recent incident response investigations reveal that attackers are becoming more advanced when it comes to the cloud, but there are steps enterprises can take to mitigate risks. Continue Reading
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News
10 Aug 2023
Trend Micro discloses 'silent threat' flaws in Azure ML
During a Black Hat 2023 session, Trend Micro researchers discussed several vulnerabilities they discovered in Azure Machine Learning that allow sensitive information disclosure. Continue Reading
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News
10 Aug 2023
Researchers put LLMs to the test in phishing email experiment
A Black Hat USA 2023 session discussed an experiment that used large language models to see how effective the technology can be in both detecting and producing phishing emails. Continue Reading
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News
09 Aug 2023
Onapsis researchers detail new SAP security threats
At Black Hat 2023, Onapsis researchers demonstrated how attackers could chain a series of SAP vulnerabilities impacting the P4 protocol to gain root access to a target network. Continue Reading
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News
08 Aug 2023
Google unveils 'Downfall' attacks, vulnerability in Intel chips
Google researcher Daniel Moghimi first reported CVE-2022-40982 and the resulting data leak attacks to Intel in August 2022, but it's taken nearly 12 months to disclose the flaw. Continue Reading
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Definition
07 Aug 2023
insecure deserialization
Insecure deserialization is a vulnerability in which untrusted or unknown data is used to inflict a denial-of-service attack, execute code, bypass authentication or otherwise abuse the logic behind an application. Continue Reading
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News
03 Aug 2023
MoveIt Transfer attacks dominate July ransomware disclosures
Traditional ransomware attacks took a back seat last month, as Clop operators continued to claim victims from the zero-day attacks on MoveIt Transfer customers. Continue Reading
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News
31 Jul 2023
CISA details backdoor malware used in Barracuda ESG attacks
CISA said Friday that 'Submarine' is a novel persistent backdoor used in attacks against Barracuda Email Security Gateway appliances vulnerable to CVE-2023-2868. Continue Reading
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News
27 Jul 2023
Google: 41 zero-day vulnerabilities exploited in 2022
While attackers increasingly exploited zero-day flaws last year, one of the most notable findings from the report emphasized how inadequate patches led to new variants. Continue Reading
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News
25 Jul 2023
Ivanti EPMM zero-day vulnerability exploited in wild
A zero-day authentication bypass vulnerability in Ivanti Endpoint Manager Mobile was exploited in a cyber attack against a Norwegian government agency. Continue Reading
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News
24 Jul 2023
Coveware: Rate of victims paying ransom continues to plummet
Incident response firm Coveware said 34% of ransomware victims paid the ransom in Q2 2023, a sharp decline from last quarter and an enormous decline from 2020 and 2019. Continue Reading
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Podcast
20 Jul 2023
Risk & Repeat: Are data extortion attacks ransomware?
Ransomware gangs are focusing more on data theft and extortion, while skipping the encryption of networks. But should these attacks still be considered ransomware? Continue Reading
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News
19 Jul 2023
Microsoft to expand free cloud logging following recent hacks
Microsoft faced criticism over a lack of free cloud log data after a China-based threat actor compromised email accounts of several organizations, including some federal agencies. Continue Reading
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News
19 Jul 2023
Citrix NetScaler ADC and Gateway flaw exploited in the wild
Critical remote code execution flaw CVE-2023-3519 was one of three vulnerabilities in Citrix's NetScaler ADC and Gateway. Customers are urged to patch their instances. Continue Reading
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News
18 Jul 2023
Multiple Adobe ColdFusion flaws exploited in the wild
One of the Adobe ColdFusion flaws exploited in the wild, CVE-2023-38203, was a zero-day bug that security vendor Project Discovery inadvertently published. Continue Reading
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Tip
18 Jul 2023
Supercloud security concerns foreshadow concept's adoption
Supercloud lets applications work together across multiple cloud environments, but organizations must pay particular attention to how they protect their assets. Continue Reading
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News
18 Jul 2023
Orca: Google Cloud design flaw enables supply chain attacks
Orca Security says threat actors can use a design flaw in Google Cloud Build's default permissions to gain access to Artifact Registry code repositories and poison software. Continue Reading
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News
17 Jul 2023
JumpCloud breached by nation-state threat actor
JumpCloud's mandatory API key rotation earlier this month was triggered by a breach at the hands of a nation-state threat actor that gained access through spear phishing. Continue Reading
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News
14 Jul 2023
XSS zero-day flaw in Zimbra Collaboration Suite under attack
A manual workaround is currently available for a cross-site scripting vulnerability in Zimbra Collaboration Suite, though a patch won't be available until later this month. Continue Reading
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News
13 Jul 2023
Microsoft: Government agencies breached in email attacks
While Microsoft mitigated the attacks and found no evidence of further access beyond the email accounts, the Outlook breaches raised questions for the software giant. Continue Reading
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News
12 Jul 2023
Threat actors forged Windows driver signatures via loophole
Threat actors bypassed Microsoft's driver signing policy using a technical loophole and signature timestamp forging tools commonly used in the video game cheat community. Continue Reading
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News
12 Jul 2023
Russia-based actor exploited unpatched Office zero day
Microsoft investigated an ongoing phishing campaign that leverages Word documents to deliver malicious attachments to targeted organizations in the U.S. and Europe. Continue Reading
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Podcast
11 Jul 2023
Risk & Repeat: How bad is Clop's MoveIt Transfer campaign?
Clop's data theft and extortion campaign against MoveIt Transfer customers marks some of the most high-profile threat activity this year, but its success level remains unclear. Continue Reading
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News
11 Jul 2023
Clop's MoveIt Transfer attacks lead to mixed results
Clop's data theft extortion campaign against MoveIt Transfer customers has apparently compromised hundreds of organizations. But it's unclear how many victims have paid ransoms. Continue Reading
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News
06 Jul 2023
CISA: Truebot malware infecting networks in U.S., Canada
CISA warned of Truebot attacks in a joint advisory alongside the FBI, the Canadian Centre for Cyber Security and the Multi-State Information Sharing and Analysis Center. Continue Reading
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News
05 Jul 2023
June saw flurry of ransomware attacks on education sector
As the school year culminated, ransomware attacks surged across K-12 schools and universities, causing class disruptions and putting sensitive data at risk. Continue Reading
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News
30 Jun 2023
TSMC partner breached by LockBit ransomware gang
A cyber attack against Chinese systems integrator Kinmax led to the theft of TSMC proprietary data, which LockBit threatened to publish unless TSMC paid a $70 million ransom. Continue Reading
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News
28 Jun 2023
DDoS attacks surging behind new techniques, geopolitical goals
A rise in massive DDoS attacks, some of which target the application layer and cause significant disruptions, might require new defense strategies from cybersecurity vendors. Continue Reading
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News
27 Jun 2023
Censys finds hundreds of exposed devices in federal orgs
Censys found exposed instances of Progress Software's MoveIt Transfer and Barracuda Networks' Email Security Gateway appliances during its analysis of FCEB agency networks. Continue Reading
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Definition
27 Jun 2023
Occupational Safety and Health Administration (OSHA)
The Occupational Safety and Health Administration (OSHA) is responsible for protecting worker health and safety in the United States. Continue Reading
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News
22 Jun 2023
Apple patches zero days used in spyware attacks on Kaspersky
Two Apple zero days were used in the spyware campaign Kaspersky Lab named 'Operation Triangulation,' which was initially discovered on iOS devices of Kaspersky employees. Continue Reading
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News
21 Jun 2023
Critical VMware Aria Operations bug under active exploitation
Reports of exploitation for a critical command injection flaw in VMware Aria Operations for Networks came roughly a week after a researcher published a proof-of-concept for it. Continue Reading
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News
21 Jun 2023
May ransomware activity rises behind 8base, LockBit gangs
LockBit was the most active group last month, but NCC Group researchers were surprised by 8base, which started listing victims from attacks that occurred beginning in April 2022. Continue Reading
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News
20 Jun 2023
Attackers discovering exposed cloud assets within minutes
Cloud security vendor Orca Security used honeypots to learn more about how threat actors compromise cloud resources such as misconfigured AWS S3 buckets and GitHub repositories. Continue Reading
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News
19 Jun 2023
Microsoft: DDoS attacks caused M365, Azure disruptions
Microsoft confirmed widespread service disruptions earlier this month were caused by layer 7 DDoS attacks by a threat group it identified as Storm-1359. Continue Reading
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Podcast
15 Jun 2023
Risk & Repeat: Mandiant sheds light on Barracuda ESG attacks
Barracuda Networks attempted to fix the critical ESG zero-day vulnerability, but a Chinese nation-state threat actor was able to maintain access on compromised devices. Continue Reading
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News
15 Jun 2023
Chinese nation-state actor behind Barracuda ESG attacks
Mandiant said the zero-day attacks on Barracuda Email Security Gateway appliances were part of a 'wide-ranging campaign in support of the People's Republic of China.' Continue Reading
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News
13 Jun 2023
Fortinet warns critical VPN vulnerability 'may' be under attack
Fortinet said the heap buffer overflow flaw might have been exploited already and warned that Chinese nation-state threat group Volt Typhoon would likely attack the vulnerability. Continue Reading
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News
13 Jun 2023
Mandiant: New VMware ESXi zero-day used by Chinese APT
VMware said the ESXi flaw was 'low severity' despite being under active exploitation because it requires the attacker to already have gained root access on the target's system. Continue Reading
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News
12 Jun 2023
MoveIT Transfer attacks highlight SQL injection risks
Security vendors say SQL injection flaws, like the zero-day vulnerability recently disclosed by Progress Software, can be challenging for companies to identify and resolve. Continue Reading
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Podcast
08 Jun 2023
Risk & Repeat: Moveit Transfer flaw triggers data breaches
Several organizations, predominantly in the U.K., have confirmed data breaches that stemmed from exploitation of the critical Moveit Transfer zero-day vulnerability. Continue Reading
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News
08 Jun 2023
Barracuda: Replace vulnerable ESG devices 'immediately'
Customers with email security gateway appliances affected by a recent zero-day flaw, CVE-2023-2868, are being urged to replace devices, even if the hardware has been patched. Continue Reading
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Tip
07 Jun 2023
Top blockchain attacks, hacks and security issues explained
Blockchain is an attractive target for malicious actors. From blockchain-specific attacks to human vulnerabilities to lack of regulations, these are the top blockchain issues. Continue Reading
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News
06 Jun 2023
Ransomware takes down multiple municipalities in May
City and local governments experienced severe disruptions to public services due to ransomware attacks in May, particularly from the Royal ransomware group. Continue Reading
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News
06 Jun 2023
Verizon 2023 DBIR: Ransomware remains steady but complicated
Chris Novak, managing director of cybersecurity consulting at Verizon Business, said 2023 was a "retooling year" for ransomware threat actors adapted to improved defenses. Continue Reading
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News
05 Jun 2023
Ransomware actors exploiting MoveIt Transfer vulnerability
Microsoft said the recently disclosed zero-day flaw in Progress Software's managed file transfer product is being exploited by threat actors connected to the Clop ransomware gang. Continue Reading
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News
01 Jun 2023
Zyxel vulnerability under 'widespread exploitation'
Researchers warn that threat actors are widely exploiting an unauthenticated command injection vulnerability to target multiple Zyxel network devices. Continue Reading
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News
01 Jun 2023
Zero-day vulnerability in MoveIt Transfer under attack
Rapid7 observed exploitation of a SQL injection vulnerability in Progress Software's managed file transfer product, which was disclosed this week but has not been patched. Continue Reading
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News
31 May 2023
Barracuda zero-day bug exploited months prior to discovery
Barracuda said a zero-day flaw used to target its email security gateway appliance customers is a remote command injection vulnerability exploited since at least October 2022. Continue Reading
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News
31 May 2023
Many Gigabyte PC models affected by major supply chain issue
Eclypsium researchers say the insecure implementation of PC hardware manufacturer Gigabyte's App Center could potentially result in supply chain attacks. Continue Reading
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News
25 May 2023
Chinese hackers targeting U.S. critical infrastructure
Microsoft uncovered a Chinese nation-state threat group that is compromising Fortinet FortiGuard devices to gain access to critical infrastructure entities in the U.S. and Guam. Continue Reading
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News
24 May 2023
Barracuda discloses zero-day flaw affecting ESG appliances
Barracuda Networks said threat actors exploited the zero-day to gain 'unauthorized access to a subset of email gateway appliances,' though it did not say how many. Continue Reading
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News
23 May 2023
Threat actors leverage kernel drivers in new attacks
Fortinet detailed a campaign using a malicious driver in attacks against organizations in the Middle East, and Trend Micro detailed a driver-based attack by BlackCat ransomware. Continue Reading
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News
19 May 2023
Dish 'received confirmation' ransomware gang deleted stolen data
A line in Dish Network's breach notification sent to affected employees this week suggested the satellite TV provider had paid a ransomware gang to delete stolen data. Continue Reading