Threats, Cyberattacks & Vulnerabilities
Top Stories
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Video
05 Oct 2026
Threat summer 2026: Editors discuss top cyber incidents
In this edition of the Reporters' Notebook video series, our cybersecurity reporters explore their picks for the most significant security incidents over the summer of 2026. Continue Reading
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News
02 Oct 2026
Developers facing a patchwork of competing AI safety regulations
Policymakers are moving swiftly to regulate agentic AI, creating varying mandates across regions and leaving developers to figure out compliance. Experts explain how the industry can keep pace. Continue Reading
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News
17 May 2022
Cardiologist charged with creating Thanos, Jigsaw ransomware
Moises Luis Zagala Gonzalez, 55, faces up to five years in prison for each of the two charges connected to his alleged role in creating Thanos and Jigsaw ransomware. Continue Reading
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Definition
17 May 2022
man in the browser (MitB)
Man in the browser (MitB) is a security attack where the perpetrator installs a Trojan horse on the victim's computer that is capable of modifying that user's web transactions. Continue Reading
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News
12 May 2022
Iranian APT Cobalt Mirage launching ransomware attacks
Secureworks researchers said a new Iranian state-sponsored threat group is melding government and financial interests by targeting U.S. organizations with ransomware attacks. Continue Reading
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News
11 May 2022
Critical F5 vulnerability under exploitation in the wild
A remote code vulnerability in F5 BIG-IP network appliances is now being scanned for by threat actors, and some experts have observed exploitation in the wild. Continue Reading
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News
11 May 2022
US, allies warn of nation-state attacks against MSPs
The joint advisory did not name any specific nation-states, though co-sponsor agencies expect threat actors to 'step up their targeting' of managed service providers (MSPs). Continue Reading
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News
10 May 2022
New clues point to REvil ransomware gang's return
New research from Secureworks' Counter Threat Unit provides further evidence that the REvil ransomware group, once thought to be defunct, is indeed back on the scene. Continue Reading
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News
10 May 2022
US, EU attribute Viasat hack to Russia
The U.S. and U.K. governments, along with the EU, confirmed the suspicions around the attack that disrupted satellite services for customers in Ukraine as Russia invaded the country. Continue Reading
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News
09 May 2022
US offers $10M bounty for Conti ransomware information
The bounty follows a recent Conti ransomware attack that Costa Rica suffered in April. The country's new president, Rodrigo Chaves, declared a national emergency Sunday. Continue Reading
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Definition
09 May 2022
parameter tampering
Parameter tampering is a type of web-based cyber attack in which certain parameters in a URL are changed without a user's authorization. Continue Reading
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News
06 May 2022
Cryptocurrency mixer sanctioned over Lazarus Group ties
North Korea's Lazarus Group is accused of stealing more than $600 million in the Axie Infinity hack and laundering a chunk through the Blender.io mixing service. Continue Reading
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News
05 May 2022
Hackers exploit vulnerable Adminer for AWS database thefts
Mandiant researchers spotted a threat group using an exploit for older versions of Adminer to get their hands on metadata that included secret keys for AWS accounts. Continue Reading
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News
05 May 2022
SentinelOne finds high-severity flaws in Avast, AVG
The Avast and AVG vulnerabilities, which have been patched, went undiscovered for 10 years and potentially impact millions of devices, according to SentinelOne. Continue Reading
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News
04 May 2022
Coveware: Double-extortion ransomware attacks fell in Q1
Coveware said double-extortion ransomware may be replaced with 'big shame ransomware,' in which an attacker threatens to leak sensitive data without encrypting it. Continue Reading
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News
04 May 2022
Winnti threat group rides again with IP theft campaign
A Chinese cyberespionage campaign, dubbed 'Operation CuckooBees' by Cybereason, went unnoticed for years as spies siphoned off intellectual property from companies. Continue Reading
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News
03 May 2022
Trend Micro discovers AvosLocker can disable antivirus software
AvosLocker operators are using legitimate tools and previously disclosed vulnerabilities to disable antivirus software and evade detection on infected machines. Continue Reading
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News
03 May 2022
RCE vulnerabilities found in Avaya, Aruba network switches
Armis told SearchSecurity that depending on device model, it was 'not too hard to develop an exploit' for the Avaya and Aruba flaws, heightening concern for administrators. Continue Reading
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News
03 May 2022
April ransomware attacks slam US universities
April's ransomware attacks were highlighted by several universities and colleges in the U.S. reporting attacks, plus a possible data breach at one of the world's largest beverage companies. Continue Reading
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News
02 May 2022
Cyberespionage group exploiting network and IoT blind spots
Researchers with Mandiant have uncovered a new espionage-focused hacking operation that takes advantage of IoT and networking gear that security tools don't cover. Continue Reading
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News
28 Apr 2022
Lapsus$ targeting SharePoint, VPNs and virtual machines
From social engineering attacks to admin tools, a recent NCC Group report examined the tactics used by Lapsus$ to breach companies like Microsoft, Nvidia and Samsung. Continue Reading
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News
28 Apr 2022
Check Point: Ransomware attacks lasted 9.9 days in 2021
Check Point Research and Kovrr found ransomware attack victims paid out 89% of the ransom demand on average in 2019. The figure dropped to 27% in 2020 before rising to 49% in 2021. Continue Reading
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Feature
28 Apr 2022
Case study: Why it's difficult to attribute nation-state attacks
If two attacks look similar, don't assume they're from the same attacker. It's difficult to attribute nation-state attacks, as evidenced by the notorious 2016 Odinaff malware. Continue Reading
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News
28 Apr 2022
Phishing attacks benefiting from shady SEO practices
Cybercriminals running phishing operations are now making use of SEO specialists that break Google's rules to get themselves placed above legitimate search results to lure victims. Continue Reading
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News
27 Apr 2022
Five Eyes reveals 15 most exploited vulnerabilities of 2021
Law enforcement agencies from five countries share the top flaws they've observed being exploited this year, some of which were disclosed as early as 2018. Continue Reading
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News
27 Apr 2022
REvil ransomware attacks resume, but operators are unknown
The notorious REvil ransomware gang appears to be up and running once more, as new attacks and malware samples have been observed, but it's unclear who is behind the operation. Continue Reading
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News
27 Apr 2022
Sophos: 66% of organizations hit by ransomware in 2021
Forty-four percent of organizations surveyed by Sophos said they used multiple approaches to recover data following a ransomware attack, including paying ransoms and using backups. Continue Reading
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News
26 Apr 2022
Cisco Talos observes 'novel increase' in APT activity in Q1
The security vendor uncovered new trends during Q1, including increased APT attacks, 'democratized' ransomware threats and significant exploitation of Log4j bugs. Continue Reading
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News
25 Apr 2022
LemonDuck botnet evades detection in cryptomining attacks
While the botnet is not new, it appears operators are honing their skills and evading Alibaba Cloud's monitoring service to take advantage of rising cryptocurrency prices. Continue Reading
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News
25 Apr 2022
T-Mobile breached in apparent Lapsus$ attack
Lapsus$'s alleged theft of T-Mobile source code is in line with its previous activity; the cybercrime group previously stole code from Microsoft and Samsung. Continue Reading
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News
21 Apr 2022
Zero-day vulnerability exploitation soaring, experts say
Researchers with Mandiant and Google Project Zero say they observed significant increases in exploitation of zero-day vulnerabilities over the past year. Continue Reading
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News
21 Apr 2022
Cryptocurrency theft leaves Beanstalk Farms' future in doubt
Beanstalk Farms' founders confirmed they found many aspects of activity during the attack 'strange' but saw no reason for concern. Now, the company's future is uncertain. Continue Reading
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News
21 Apr 2022
FBI warns of 'timed' ransomware attacks on agriculture sector
In a recent alert, the FBI warned that food and agriculture businesses could become a target of ransomware attacks at the sector's busiest times of the year. Continue Reading
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News
20 Apr 2022
U.S. warns of 'increased' threats from Russian hacking groups
The U.S. government and its Five Eyes intelligence partners issued a joint advisory warning of the dangers posed by both state-sponsored hackers and cybercriminal crews in Russia. Continue Reading
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News
20 Apr 2022
BlackCat emerges as one of the top ransomware threats
After several notable ransomware attacks against major enterprises, the BlackCat gang is drawing the attention of security researchers who have connected it to other groups. Continue Reading
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News
18 Apr 2022
Pegasus spyware discovered on U.K. government networks
Citizen Lab confirmed it spotted the notorious spyware running on systems within the U.K. prime minister's office, and it believes the United Arab Emirates is to blame. Continue Reading
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News
18 Apr 2022
Stolen OAuth tokens lead to 'dozens' of breached GitHub repos
Stolen OAuth tokens issued to Heroku and Travis CI were used to download data from the private repositories of 'dozens of organizations,' including GitHub subsidiary npm. Continue Reading
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News
18 Apr 2022
Attack on Beanstalk Farms results in $182M loss
High payouts and security weaknesses make cryptocurrency a growing target, which was highlighted even further in the latest attack involving virtual currency and a DeFi platform. Continue Reading
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News
14 Apr 2022
Critical Windows RPC vulnerability raises alarm
Security experts warn that a newly disclosed vulnerability in a critical Windows networking component is opening the door for remote takeover attacks. Continue Reading
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News
14 Apr 2022
VMware Workspace One flaw actively exploited in the wild
Multiple threat intelligence providers have detected threat activity related to the VMware Workspace One flaw, including cryptocurrency mining activity. Continue Reading
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News
14 Apr 2022
US government, security vendors warn of new ICS malware
As attacks on critical infrastructure increase, experts warn that threat actors have developed new malware designed to take control of ICS and SCADA systems in the energy sector. Continue Reading
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News
13 Apr 2022
Sophos: LockBit affiliates hacked regional government agency
Sophos said attackers spent at least five months inside an unnamed regional government agency's network, remotely Googling for hacking tools before deploying LockBit ransomware. Continue Reading
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News
12 Apr 2022
Ukraine energy grid hit by Russian Industroyer2 malware
The 2016 malware known as 'Industroyer' has resurfaced in a new series of targeted attacks against industrial controller hardware at a Ukraine power company. Continue Reading
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News
12 Apr 2022
Law enforcement takedowns continue with RaidForums seizure
The hacker forum, which used to sell and purchase sensitive information including login credentials, has been dismantled, and its alleged founder was arrested and indicted. Continue Reading
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News
08 Apr 2022
Fin7 hacker sentenced to 5 years in prison
A Ukrainian man has been sentenced to five years in prison after being convicted as one of the primary hackers behind the notorious Fin7 financial malware ring. Continue Reading
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News
07 Apr 2022
How the FBI took down the Cyclops Blink botnet
The FBI's operation copied and removed Cyclops Blink's malware from victims' systems that were used as command and control devices, severing Sandworm's control of the botnet. Continue Reading
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News
06 Apr 2022
US sanctions Garantex for laundering over $100M
The latest action follows a string of sanctions imposed during the past year against cryptocurrency exchanges operating out of Russia. Continue Reading
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News
06 Apr 2022
Conti ransomware leaks show a low-tech but effective model
The Conti ransomware gang runs largely on elbow grease, according to Akamai security researchers who analyzed the group's training materials and operating policies. Continue Reading
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News
05 Apr 2022
German authorities behead dark web Hydra Market
Police in Germany raided facilities hosting the infamous Hydra Market site as part of an international effort to crack down on dark web forums and marketplaces. Continue Reading
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News
05 Apr 2022
March ransomware attacks strike finance, government targets
In March, ransomware reports and disclosures showed a variety of victims, from public schools and county governments to financial services firms and large enterprises. Continue Reading
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News
05 Apr 2022
Conti ransomware deployed in IcedID banking Trojan attack
The Conti ransomware gang gained recent notoriety for publicly backing Russia in its invasion of Ukraine. An anonymous researcher then leaked massive amounts of internal Conti data. Continue Reading
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News
04 Apr 2022
Cryptocurrency companies targeted in Mailchimp breach
Cryptocurrency wallet maker Trezor revealed phishing attacks against its customers that stemmed from a breach at Mailchimp, which the email marketing firm later confirmed. Continue Reading
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News
31 Mar 2022
New 'AcidRain' malware may be connected to Viasat attack
SentinelOne did not directly attribute the malware to the Viasat attack. That said, researchers argued the "AcidRain" malware's functionality matches open source intelligence. Continue Reading
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News
30 Mar 2022
Viasat confirms cyber attack on Ukraine customers
The U.S.-based satellite internet provider said a 'multifaceted and deliberate cyber attack' struck Viasat's KA-SAT network on the first day of Russia's invasion of Ukraine. Continue Reading
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News
30 Mar 2022
Axie Infinity hack results in $600M cryptocurrency heist
Axie Infinity, whose developer was hacked this month, is a popular NFT-based video game in which players earn cryptocurrency by raising their pay-to-play digital pets, or 'Axies.' Continue Reading
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News
29 Mar 2022
Rapid7 finds zero-day attacks surged in 2021
Cybercriminals are turning bugs into exploits faster than ever, according to Rapid7, which found that the average time to known exploitation dropped 71% last year. Continue Reading
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Feature
29 Mar 2022
Cryptocurrency cyber attacks on the rise as industry expands
Consumers, businesses and governments are finding new ways to use cryptocurrency, but a recent string of cyber attacks has highlighted security risks and shortcomings. Continue Reading
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News
25 Mar 2022
US indicts Russian nationals for critical infrastructure attacks
One defendant is accused of deploying the infamous Trisis or Triton malware against energy-sector companies, including a petrochemical plant in Saudi Arabia in a 2017 attack. Continue Reading
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News
24 Mar 2022
North Korean hackers exploited Chrome zero-day for 6 weeks
Google researchers say a Chrome zero-day bug stemming from a use-after-free error was exploited by North Korean hackers against both media and financial targets earlier this year. Continue Reading
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News
24 Mar 2022
FBI: Ransomware hit 649 critical infrastructure entities in 2021
The FBI's Internet Crime Complaint Center found ransomware was a top threat to critical infrastructure security in 2021, hitting a wide range of organizations. Continue Reading
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News
24 Mar 2022
Okta provides new details on Lapsus$ attack
The authentication provider shed new light on how a customer service agent at subcontractor Sitel was hacked and then used to obtain data on hundreds of Okta clients. Continue Reading
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News
23 Mar 2022
Microsoft confirms breach, attributes attack to Lapsus$
Microsoft disclosed it had been breached by emerging threat group Lapsus$ toward the end of a threat intelligence post dedicated to the extortion gang and its tactics. Continue Reading
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News
22 Mar 2022
Lapsus$ hacking group hit authentication vendor Okta
Authentication vendor Okta is the latest tech giant to be named as a victim of the prolific Lapsus$ crew, through key details about the attack remain in dispute. Continue Reading
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News
22 Mar 2022
Biden: Russia exploring cyber attacks against US
President Joe Biden's warning of potential Russian attacks against U.S. critical infrastructure is the latest call to action for the private sector to fortify its cyberdefenses. Continue Reading
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News
17 Mar 2022
JavaScript apps hit with pro-Ukraine supply chain attack
A popular JavaScript package was sabotaged by its developer and seeded with messages in support of Ukraine in what has become a supply chain attack. Continue Reading
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News
16 Mar 2022
LokiLocker ransomware crew bursts onto the scene
The mysterious LokiLocker ransomware group caught the attention of BlackBerry researchers, who say the outfit could become the next cybercrime group to menace enterprises. Continue Reading
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News
16 Mar 2022
FTC accuses CafePress of covering up 2019 data breach
The proposed FTC settlement would require CafePress' former owner to pay $500,000 in compensation to customers who were victimized in the company's 2019 data breach. Continue Reading
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News
14 Mar 2022
Cyber insurance war exclusions loom amid Ukraine crisis
Changes in insurance exemptions for acts of war reflect an increase in damages caused to enterprises related to state-sponsored cyber attacks. Continue Reading
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News
10 Mar 2022
Log4Shell vulnerability continues to menace developers
Months after it was first disclosed, the Log4j RCE vulnerability remains widespread on code-sharing sites and open source repositories, according to security researchers. Continue Reading
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Definition
10 Mar 2022
metamorphic and polymorphic malware
Metamorphic and polymorphic malware are two types of malicious software (malware) that can change their code as they propagate through a system. Continue Reading
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News
09 Mar 2022
Researchers disclose new Spectre V2 vulnerabilities
The Spectre class of data disclosure vulnerabilities is once again at the security forefront after researchers discovered a new variant of the side-channel attack. Continue Reading
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News
08 Mar 2022
FBI finds Ragnar Locker hit 52 U.S. critical infrastructure targets
While providing an updated list of indicators of compromise, the FBI revealed that a range of critical sectors were attacked by the ransomware group. Continue Reading
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News
08 Mar 2022
Researchers uncover vulnerabilities in APC Smart-UPS devices
Researchers with Armis found a trio of vulnerabilities in uninterruptible power supply (UPS) devices from APC that could be remotely exploited by threat actors. Continue Reading
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News
07 Mar 2022
Samsung breached, Nvidia hackers claim responsibility
Samsung said Galaxy device source code was stolen, but no employee or customer personal information was taken by the attackers, who appear to be with the Lapsus$ ransomware group. Continue Reading
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News
04 Mar 2022
Hackers using stolen Nvidia certificates to sign malware
The recent breach of Nvidia's corporate network has resulted in the posting of valid software certificates that are now being used to spread malware in the wild. Continue Reading
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Podcast
04 Mar 2022
Risk & Repeat: Conti ransomware gang gets breached
This Risk & Repeat podcast episode covers the massive Conti leaks, including the data that was published and what it reveals about the infamous ransomware gang. Continue Reading
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News
04 Mar 2022
February ransomware attacks hit major enterprises
Enterprises, colleges and municipalities in the U.S. continued to be hit by ransomware as publicly reported attacks for February piled up. Continue Reading
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News
02 Mar 2022
CrowdStrike cracks PartyTicket ransomware targeting Ukraine
CrowdStrike's analysis of the new ransomware, also known as HermeticRansom, that affected Ukrainian organizations revealed that files encrypted with PartyTicket are recoverable. Continue Reading
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News
01 Mar 2022
Conti ransomware source code, documentation leaked
The Conti ransomware gang's primary Bitcoin address, found in the leak, showed the crime outfit has taken in over $2 billion in cryptocurrency since 2017. Continue Reading
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News
28 Feb 2022
Recorded Future: Russia may retaliate with cyber attacks
Recorded Future warned U.S. and European organizations could be hit by 'spillover attacks' or intentional retaliatory strikes from Russia following its invasion of Ukraine. Continue Reading
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News
28 Feb 2022
Conti ransomware gang backs Russia, threatens U.S.
The Conti ransomware gang announced last week that they were in 'full support' of Russia and would retaliate if the West attacked Russian critical infrastructure. Continue Reading
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News
25 Feb 2022
Researchers find access brokers focused on US targets
Security vendors studied 'access broker' advertisements on the dark web, which provide ransomware groups with the network and system access required for data thefts. Continue Reading
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News
24 Feb 2022
New data wiper malware hits Ukraine targets
HermeticWiper is similar to another data-wiping malware known as WhisperGate, which was used in cyber attacks against Ukraine last month. Both used ransomware as an apparent decoy. Continue Reading
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News
24 Feb 2022
New tech, same threats for Web 3.0
Emerging technologies are prone to old-school social engineering attacks and credential-swiping techniques, according to Cisco Talos researchers who analyzed the new platforms. Continue Reading
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News
23 Feb 2022
US, UK attribute Cyclops Blink to Sandworm
The group known for its use of VPNFilter malware has retooled with what is being tracked as Cyclops Blink, but its impact appears limited to WatchGuard business customers for now. Continue Reading
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News
23 Feb 2022
Dragos: Ransomware topped ICS and OT threats in 2021
Whether ICS and OT networks were intentionally targeted or not, ransomware was found to be the No. 1 compromise to industrial organizations last year. Continue Reading
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News
17 Feb 2022
FBI: BEC attacks spreading to virtual meetings
Since the start of the COVID-19 pandemic, many workplaces have shifted to virtual meeting platforms, and the FBI warned that threat actors have taken note. Continue Reading
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News
17 Feb 2022
SonicWall: Ransomware attacks increased 105% in 2021
While 2021 represented a turning point for law enforcement and government action against ransomware, SonicWall still observed massive growth in attacks. Continue Reading
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News
16 Feb 2022
Trickbot has infected 140,000-plus machines since late 2020
In October 2020, Microsoft reported that more than 90% of Trickbot's infrastructure had been disabled. The threat actor bounced back and began thriving soon after. Continue Reading
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News
15 Feb 2022
Sophos discovers new attack targeting Exchange Servers
A new type of attack that utilizes the Squirrelwaffle malware and business email compromise may be an issue for organizations that have not patched their Exchange servers. Continue Reading
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News
15 Feb 2022
CrowdStrike: Attackers are moving faster, harder to detect
The CrowdStrike '2022 Global Threat Report' said attackers are getting better at exploiting vulnerabilities and moving through compromised networks before defenders can spot them. Continue Reading
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News
15 Feb 2022
Ransomware tied to attacks on critical infrastructure last year
While recent law enforcement action may be altering the ransomware landscape, BlackBerry researchers observed high-profile attacks on critical infrastructure last year. Continue Reading
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News
14 Feb 2022
CISA says 'Shields Up' as Russia-Ukraine tensions escalate
CISA said in its advisory that 'there are not currently any specific credible threats to the U.S. homeland,' but cited past Russian cyber attacks against Ukraine and others. Continue Reading
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News
14 Feb 2022
Fallout from REvil arrests shakes up ransomware landscape
Russian authorities recently announced more than a dozen arrests of alleged REvil members, heightening concern among ransomware affiliates on the dark web. Continue Reading
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News
11 Feb 2022
FBI seized Colonial Pipeline ransom from DarkSide affiliate
New research from Chainalysis claims the DarkSide ransomware affiliate involved in last year's Colonial Pipeline attack also had ties to the NetWalker ransomware operation. Continue Reading
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News
10 Feb 2022
DEF CON bans social engineering expert Chris Hadnagy
Hadnagy, an influential figure at the DEF CON security conference, was permanently banned following allegations of misconduct at the annual Las Vegas gathering. Continue Reading
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News
09 Feb 2022
Ransomware groups shift from big game hunting
A joint cybersecurity advisory documented top ransomware trends for 2021 and addressed ways for organizations to improve security. Continue Reading
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News
08 Feb 2022
Russia continues cybercrime offensive with SkyFraud takedown
Officials in Russia have knocked the SkyFraud credit card fraud operation offline in the latest of a string of police actions against cybercriminals in the region. Continue Reading
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News
08 Feb 2022
DOJ recovers $3.6B from 2016 Bitfinex hack
A couple was arrested Tuesday morning after the DOJ traced 120,000 bitcoin to a digital wallet containing funds stolen during the 2016 hack of cryptocurrency platform Bitfinex. Continue Reading
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News
07 Feb 2022
Metaverse rollout brings new security risks, challenges
When companies and users decide to adapt the technologies of the coming metaverse, they will also expose themselves to a new class of security risks and vulnerabilities. Continue Reading
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News
07 Feb 2022
Wormhole offers $10M to Ethereum thieves
Wormhole also offered $10 million to anyone who provided 'information leading to the arrest and conviction of those responsible' for last week's heist. Continue Reading
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News
03 Feb 2022
Cryptocurrency platform Wormhole loses $320M after attack
After a threat actor made off with 120,000 wrapped Ethereum, Wormhole said the stolen cryptocurrency had been 'restored,' but what that means remains in question. Continue Reading