Threats and vulnerabilities
Keeping up with the latest threats and vulnerabilities is a battle for any security pro. Get up-to-date information on email threats, nation-state attacks, phishing techniques, ransomware and malware, DDoS attacks, APTs, application vulnerabilities, zero-day exploits, malicious insiders and more.
Top Stories
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Conference Coverage
13 May 2025
RSAC Conference 2025
Follow SearchSecurity's RSAC 2025 guide for insightful pre-conference insights and reports on notable presentations and breaking news at the world's biggest infosec event. Continue Reading
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News
09 May 2025
News brief: AI security risks highlighted at RSAC 2025
Check out the latest security news from the Informa TechTarget team. Continue Reading
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News
12 Nov 2020
25,000 criminal reports: Vastaamo breach sets new precedent
The recent data breach at the Vastaamo Psychotherapy Centre in Finland shows threat actors are willing to threaten and extort patients directly, setting a dangerous new precedent. Continue Reading
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News
12 Nov 2020
Life after Maze: Is Egregor ransomware next?
Cybersecurity experts have noted similarities between newly discovered Egregor ransomware and the now-defunct Maze, but it's unclear whether the same threat actors are involved. Continue Reading
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Feature
02 Nov 2020
5 steps to get IoT cybersecurity and third parties in sync
Third parties often prove to be the weak links when it comes to IoT cybersecurity. Learn what you can do to minimize the risk while reaping the benefits that outside vendors bring. Continue Reading
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Infographic
02 Nov 2020
COVID-19 cybersecurity data shows rising risk during remote pivot
When enterprises quickly pivoted to remote work during the pandemic, it prompted a wave of new threats while also widening existing gaps in cybersecurity postures. Continue Reading
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News
02 Nov 2020
Maze gang shuts down its ransomware operation
Maze ransomware has shut down, according to an announcement it posted Sunday, although some evidence suggests that Maze operators have resumed attacks under a different name. Continue Reading
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News
29 Oct 2020
FBI, CISA warn of impending ransomware attacks on hospitals
Trickbot and Ryuk ransomware actors are targeting hospitals and other healthcare providers, according to a joint cybersecurity advisory from the CISA and the FBI. Continue Reading
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News
28 Oct 2020
'Lives at stake': How ransomware impacts hospitals
Some ransomware gangs pledged to not target medical facilities during the COVID-19 pandemic, but hospitals are still getting hit. And the attacks affect more than just IT systems. Continue Reading
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News
22 Oct 2020
Iranian hackers pose as far-right group to threaten U.S. voters
The FBI said Russia and Iran have obtained voter information, and Iranian hackers have also been sending threatening emails to voters that appeared to be from a far-right group. Continue Reading
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News
22 Oct 2020
McAfee launches IPO, raises $620 million
McAfee has returned to Wall Street, which comes months after the endpoint security vendor's previous CEO, Christopher Young, was replaced by Peter Leav in January. Continue Reading
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News
21 Oct 2020
Microsoft: 94% of Trickbot's infrastructure disabled
In a new blog post, Microsoft said its legal takedown last week, which sought to decrease Trickbot activity, disabled the vast majority of the botnet's servers. Continue Reading
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News
20 Oct 2020
NSS Labs ceases operations amid financial turmoil
Product testing firm NSS Labs shut down last week, citing negative effects of COVID-19, but former employees say the company's troubles started well before the pandemic. Continue Reading
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Guest Post
19 Oct 2020
Combating disinformation campaigns ahead of 2020 election
As the 2020 election approaches, more focus needs to be on overcoming disinformation campaigns that manipulate voters as they vote early or head to the polls on Election Day. Continue Reading
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News
08 Oct 2020
Should ransomware payments be banned? Experts weigh in
Two events -- a new advisory and what might be the first ransomware-related death -- have reignited the debate of whether ransomware payments should be banned. Continue Reading
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News
07 Oct 2020
Raccine: A ransomware 'vaccine' with a few catches
Raccine, an open source 'vaccine,' prevents ransomware threat actors from using a Windows utility to delete shadow copies of a system's data, but there are a few drawbacks. Continue Reading
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News
01 Oct 2020
Potential ransomware-related death still under investigation
German authorities say they are still investigating the death of a patient in connection with a ransomware attack on Düsseldorf University Hospital in Germany last month. Continue Reading
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News
28 Sep 2020
IBM: Ransomware attacks surged in Q2, ransom demands rising
IBM Security examined several concerning ransomware for this year, as well as an exponential increase in ransom demands and massive spike in attacks during the spring. Continue Reading
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News
17 Sep 2020
Gartner: Paying after ransomware attacks carries big risks
The average cost of a ransomware payment in Q1 2020 was $178,254, according to a session at Gartner's Security & Risk Management Summit -- and that doesn't include downtime cost. Continue Reading
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News
02 Sep 2020
CISA and FBI say there have been no hacks on voter databases
After a false Russian news report circulated on the internet, CISA and the FBI released a joint statement that denied any hacks to election security. Continue Reading
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News
01 Sep 2020
Big ransomware attacks overshadowing other alarming trends
Large ransomware attacks on major enterprises have dominated the news, but security experts say there are other alarming trends. Continue Reading
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News
27 Aug 2020
North Korea's 'BeagleBoyz' target banks with ATM cash-out attacks
The U.S. Government issued a joint alert for an ATM cash-out scheme run by a newly identified North Korean nation-state hacking group known as 'BeagleBoyz.' Continue Reading
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News
27 Aug 2020
Maze ransomware 'cartel' expands with new members
Two more ransomware groups have apparently joined the Maze 'cartel' in an effort to expose victims' data on leak sites and shame them into paying expensive ransoms. Continue Reading
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News
24 Aug 2020
FBI and CISA issue vishing campaign warning
The FBI and CISA have issued a joint advisory related to a vishing campaign that began in mid-July, with numerous attacks that gained access to corporate VPN credentials. Continue Reading
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News
17 Aug 2020
Email enigma: Why is Canada hit with so many phishing attacks?
Canada has become an increasingly popular target for phishing attacks, according to several security vendors, but the reasons for the increase remain a mystery. Continue Reading
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Guest Post
12 Aug 2020
What cybersecurity teams can learn from COVID-19
Nabil Hannan examines key similarities between medical and computer viruses that cybersecurity teams can use to keep businesses protected effectively. Continue Reading
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Answer
05 Aug 2020
How to send secure email attachments
Sending sensitive information in attachments is inherently unsafe, and the main way to secure them -- encryption -- can be implemented inconsistently, negating security benefits. Continue Reading
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Podcast
04 Aug 2020
Risk & Repeat: Sophos warns of evolving ransomware threats
Dan Schiappa and Chester Wisniewski of Sophos join the Risk & Repeat podcast to discuss how ransomware groups are evolving and embracing innovative evasion techniques. Continue Reading
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News
29 Jul 2020
'BootHole' bug puts most Linux, Windows systems in jeopardy
Hardware security vendor Eclypsium discovered a bootloader vulnerability that bypasses Secure Boot protection and affects a majority of modern Linux and Windows systems. Continue Reading
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News
27 Jul 2020
Emotet botnet hacked, malware replaced with humorous GIFs
Malware distribution network Emotet has been hacked by a potential threat actor of unknown origin, with malware payloads now being replaced with GIFs of James Franco and others. Continue Reading
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News
27 Jul 2020
Digital ad networks tied to malvertising threats -- again
Adsterra and Propeller Ads were implicated in past malvertising threats such the Master134 campaign. Now the two ad networks are linked to new malicious activity. Continue Reading
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News
23 Jul 2020
Evasive phishing campaign hid inside Google cloud services
A new report by Check Point Software Technologies revealed attackers were abusing Google Cloud Functions to hide their phishing links within public cloud services. Continue Reading
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News
17 Jul 2020
Identity theft subscription services uncovered on dark web
Identity theft subscriptions are now being offered on the dark web. This information is being used for carding operations, account generation and other cybercrime schemes. Continue Reading
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News
13 Jul 2020
RSA finds two-thirds of phishing attacks directed at Canada
RSA Security researchers found that nearly 70% of phishing attacks were directed at users in Canada, while the majority of attacks come from U.S.-based ISPs and hosting providers. Continue Reading
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News
10 Jul 2020
Cybercriminals auction off admin credentials for $3,000
Threat actors are auctioning off domain administrator accounts, selling access to the highest bidder for an average of $3,139 and up to $140,000, according to Digital Shadows. Continue Reading
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News
09 Jul 2020
Data theft in ransomware attacks may change disclosure game
Many ransomware attacks aren't publicly disclosed. But as ransomware gangs continue to steal, encrypt and threaten to publicly release data, that may be changing. Continue Reading
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Feature
09 Jul 2020
How cyber warfare laws limit risk on a digital battleground
Retired Navy cryptologist implores enterprises to build key cyber warfare laws into their infosec strategy to improve survivability on the digital battleground in his new book. Continue Reading
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Feature
09 Jul 2020
The future of cyber warfare requires infosec's attention
The future of cyber warfare places enterprise security and survivability in the crosshairs. Learn more about cyber warfare threats and capabilities and how infosec can prepare. Continue Reading
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News
08 Jul 2020
Microsoft seizes malicious domains used in COVID-19 phishing
Microsoft went to court to seize several malicious domains that were used by cybercriminals in extensive phishing and BEC attacks on Office 365 accounts amid the current pandemic. Continue Reading
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Tip
08 Jul 2020
5 steps to help prevent supply chain cybersecurity threats
Follow five steps to lower the risk of supply chain cybersecurity threats, from creating third-party risk management teams to using blockchain and hyperledger and more. Continue Reading
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News
01 Jul 2020
Snake ransomware poses unique danger to industrial systems
The new ransomware family known as Snake, or Ekans, is designed for organizations with industrial control systems and has already struck at least two enterprises. Continue Reading
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News
26 Jun 2020
Maze ransomware hit biggest target yet with LG breach
The operators of Maze ransomware claim to have breached LG, offering three screenshots as proof. One of those screenshots features LG product source code. Continue Reading
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News
23 Jun 2020
MSPs scramble to bolster security amid ransomware spike
After a flurry of devastating ransomware attacks in 2019, MSPs and vendor partners are improving security to prevent history from repeating during the pandemic. Continue Reading
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News
11 Jun 2020
Italian company implicated in GuLoader malware attacks
While analyzing the network dropper GuLoader, researchers found an almost identical commercial software tool called CloudEye offered by a legitimate-looking Italian company. Continue Reading
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News
10 Jun 2020
New 'Thanos' ransomware weaponizes RIPlace evasion technique
Recorded Future's Insikt Group uncovered a new ransomware-as-a-service tool named 'Thanos' that's the first ransomware to use the hard-to-detect RIPlace technique. Continue Reading
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Tip
10 Jun 2020
How security teams can prevent island-hopping cyberattacks
Learn how to prevent island-hopping cyberattacks to keep hackers from gaining the confidence of a phishing victim who could then accidentally commit corporate financial fraud. Continue Reading
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News
05 Jun 2020
Chinese, Iranian hackers targeted Trump and Biden campaigns
Shane Huntley, director of Google's Threat Analysis Group, announced that two state-backed APT groups targeted campaign staff for both Joe Biden and President Donald Trump. Continue Reading
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Podcast
05 Jun 2020
Risk & Repeat: Are ransomware groups joining forces?
This week's Risk & Repeat podcast discusses the prospect of ransomware gangs working together and what it could mean for enterprises and the overall threat landscape. Continue Reading
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News
04 Jun 2020
Attacks on Exim vulnerability continue one year later
Though the Exim mail transfer agent vulnerability was publicly disclosed in June 2019, a significant number of unpatched versions remain online and are at risk of attacks. Continue Reading
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Tip
01 Jun 2020
12 Microsoft 365 security best practices to secure the suite
Migrating to or operating cloud-based Microsoft 365 can bring with it a host of problems and misconfigurations. Check out 12 best practices to tighten Microsoft 365 security. Continue Reading
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News
26 May 2020
StrandHogg 2.0 allows attackers to imitate most Android apps
A new elevation-of-privilege vulnerability on Android, dubbed StrandHogg 2.0, allows threat actors to gain access to most apps, according to Norwegian mobile security firm Promon. Continue Reading
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News
26 May 2020
Mandiant dishes on notorious Maze ransomware group
Mandiant threat researchers navigate the tools, tactics and procedures of the Maze ransomware group, which has become notorious for "shaming" victims with stolen data. Continue Reading
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News
22 May 2020
Ragnar Locker ransomware attack hides inside virtual machine
Threat actors have developed a new type of attack method by hiding Ragnar Locker ransomware inside a virtual machine to avoid detection. Continue Reading
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News
18 May 2020
Texas struck by two ransomware attacks in one week
The Texas Department of Transportation was hit with a ransomware attack last Thursday, marking the second ransomware incident on a state agency in less than a week. Continue Reading
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News
14 May 2020
CISA identifies malware from North Korean hacking group
The Cybersecurity and Infrastructure Security Agency, in conjunction with the FBI and DoD, has identified three variants of malware used by the North Korean government. Continue Reading
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Feature
08 May 2020
How a security researcher spots a phishing email attempt
When security expert Steven Murdoch spotted a phishing email in his inbox, the researcher in him decided to investigate. Here's what he learned about criminal phishing tactics. Continue Reading
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Tip
08 May 2020
How to protect the network from ransomware in 5 steps
Stronger network security could be the key to preventing a ransomware infection. Follow these five steps to protect your network from ransomware. Continue Reading
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Tip
07 May 2020
Prevent spyware through user awareness and technical controls
Find out how to protect devices from spyware and educate users to avoid the most common traps from which spyware infections might come, including phishing attacks and rogue apps. Continue Reading
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News
06 May 2020
Healthcare organizations sitting on 'unexploded' ransomware
While threat reports show ransomware attacks against healthcare organizations are down, experts say threat actors may be lurking in networks and waiting to strike at a later date. Continue Reading
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Answer
06 May 2020
The risks and effects of spyware
Spyware can steal mundane information, track a user's every move and everything in between. Read up on the types of spyware and how to best fix infected devices. Continue Reading
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News
05 May 2020
Research finds ransomware payments, demands increasing
Research from incident response vendor Coveware and national law firm BakerHostetler show massive increases in both ransomware demands and payments from victims. Continue Reading
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Opinion
01 May 2020
Why nation-state cyberattacks must be top of mind for CISOs
Even though organizations face threats coming from many sources, one type of cyberattack should be top of mind for CISOs: those backed by nation-states. Here's why. Continue Reading
- 01 May 2020
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News
01 May 2020
Shade ransomware decryptor released with 750,000 keys
Kaspersky Lab released a decryptor tool after operators behind the ransomware variant announced a shutdown of operations and issued an apology for any harm caused. Continue Reading
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Feature
30 Apr 2020
Words to go: Types of phishing scams
IT teams must take proactive measures to address security awareness when it comes to email. Learn about the types of phishing scams to mitigate risk. Continue Reading
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Feature
29 Apr 2020
Mitigating ransomware and phishing attacks during a pandemic
Where most see crisis, cybercriminals see opportunity. Learn how security leaders can meet the challenges of mitigating ransomware threats and phishing attacks during a pandemic. Continue Reading
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Feature
24 Apr 2020
Coronavirus phishing threats force heightened user awareness
As coronavirus phishing threats ramp up, organizations must turn to user education, in addition to traditional network security, as their best defense. Continue Reading
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News
24 Apr 2020
Emsisoft: U.S. ransomware attacks declined during pandemic
In the first quarter of 2020, the number of successful ransomware attacks on government and healthcare organizations in the U.S. decreased to a level unseen in years, Emsisoft said. Continue Reading
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News
22 Apr 2020
New spear phishing campaign targets oil and gas industry
Bitdefender researchers identified new spear phishing campaigns against the oil and gas industry that include emails with no typos and perfect usage of industry terminology. Continue Reading
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Tip
22 Apr 2020
How to prepare for ransomware and phishing attacks
Follow these best practices to properly prepare for ransomware and phishing attacks, as well as further steps to stay secure in the face of a pandemic or widespread health event. Continue Reading
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News
22 Apr 2020
Ransomware, cloud attacks more than doubled in 2019
New research by Trustwave shows 2019 saw huge increases in ransomware and cloud services attacks, as well as a big shift from spam toward business email compromise. Continue Reading
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News
20 Apr 2020
Cognizant discloses Maze ransomware attack
Cognizant was attacked by the Maze ransomware gang, the company confirmed Saturday. It's unclear whether Cognizant clients were also breached or infected with ransomware. Continue Reading
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News
17 Apr 2020
Ransomware attacks see 148% surge amid COVID-19
VMware Carbon Black saw a 148% increase in ransomware attacks in March over baseline levels in February, plus a massive spike in attacks on financial institutions. Continue Reading
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News
16 Apr 2020
Hackers embrace cryptocurrency laundering to evade the law
Cybercriminals are turning to cryptocurrency laundering methods to hide illicit proceeds as law enforcement agencies find success in tracing bitcoin transactions. Continue Reading
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News
15 Apr 2020
Malware found on 45 percent of home office networks
New research by BitSight compared malware infections on home office networks versus corporate networks, and the results were unsettling for remote enterprise users. Continue Reading
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News
14 Apr 2020
Russian threat group suspected of hacking SFO
San Francisco International Airport disclosed a data breach affected employees and third-party contractors, and ESET researchers said a Russian APT was likely behind the attack. Continue Reading
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News
09 Apr 2020
APTs infiltrated Linux servers undetected for nearly 10 years
New BlackBerry research shows how five APT groups operating on behalf of the Chinese government infiltrated enterprise Linux environments undetected for nearly a decade. Continue Reading
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News
03 Apr 2020
Microsoft warns hospitals of impending ransomware attacks
Microsoft warned "dozens" of hospitals with vulnerable gateway and VPN software that an infamous ransomware group known as REvil is scanning the internet for such flaws. Continue Reading
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News
02 Apr 2020
Beazley: Ransomware attacks on clients 'skyrocketed' in 2019
The 2020 Beazley Breach Briefing reported a 131% increase in reported attacks against clients last year, and the insurance giant isn't expecting the trend to slow down. Continue Reading
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News
30 Mar 2020
Coronavirus phishing lures continue to dominate threat landscape
Overall cybercrime activity isn't necessarily going up amid COVID-19, experts say. However, coronavirus-themed emails are becoming the dominant form of phishing attacks. Continue Reading
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News
27 Mar 2020
Cyberinsurance carrier Chubb investigating possible data breach
Insurance giant Chubb confirmed it is investigating an incident that may involve the Maze ransomware group, which claims to have stolen sensitive data from the company. Continue Reading
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Podcast
27 Mar 2020
Risk & Repeat: COVID-19 boosting social engineering attacks
This episode of the Risk & Repeat podcast looks at how social engineering attacks have become more successful by taking advantage of the coronavirus pandemic. Continue Reading
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Feature
26 Mar 2020
Coronavirus phishing scams increase amid pandemic's spread
Organizations must account for a sharp uptick of coronavirus phishing scams in their pandemic and business continuity plans. Learn about the trend here, with steps for mitigation. Continue Reading
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News
25 Mar 2020
China's APT41 attacks Citrix ADC flaws in cyberespionage campaign
A dual cyberespionage and cybercrime group known as APT41 exploited vulnerabilities in Citrix NetScaler/ADC and other products in an extensive, global threat campaign. Continue Reading
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News
19 Mar 2020
Deepfakes: Security experts undecided on the threat level
Deepfakes may seem like a scary new threat in today's world, but should the world be worried? SearchSecurity asked numerous experts to weigh in at RSA Conference 2020. Continue Reading
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News
19 Mar 2020
Maze ransomware gang pledges to stop attacking hospitals
The infamous Maze gang announced it has stopped ransomware attacks on healthcare and medical facilities because of the seriousness of the coronavirus pandemic. Continue Reading
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Podcast
19 Mar 2020
Risk & Repeat: Coronavirus-themed threats on the rise
This week's Risk & Repeat podcast looks at the disruption caused by COVID-19, as well as the sharp increase in cyberthreats designed to exploit the pandemic. Continue Reading
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News
17 Mar 2020
Ransomware attacks poised to disrupt coronavirus response efforts
Experts fear that coronavirus-themed threats will escalate to ransomware attacks, and such attacks will disrupt response efforts at hospitals and city, state and local governments. Continue Reading
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News
13 Mar 2020
Ransomware attack hits Champaign-Urbana Public Health District
A ransomware attack shut down Champaign-Urbana's public health website, hindering the city's ability to provide information and updates on the Coronavirus pandemic. Continue Reading
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News
11 Mar 2020
Microsoft leads takedown of Necurs botnet
Microsoft, BitSight and other partners used legal and technical steps to take control of one of largest botnets in the world that infected more than 9 million systems. Continue Reading
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Tip
10 Mar 2020
How nation-state cyberattacks affect the future of infosec
Any company can be a nation-state cyberattack victim. Brush up on the latest and most common nation-state techniques and their implications on the threat landscape of tomorrow. Continue Reading
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Tip
10 Mar 2020
5G network slicing security benefits IoT, mobile
The fifth generation of mobile cellular technology offers a unique benefit its predecessors don't: network slicing. Learn more about these virtual slices and their security benefits. Continue Reading
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News
09 Mar 2020
Researchers develop new side channel attacks on AMD chips
Security researchers behind the Meltdown and Spectre flaws discovered new side channel attacks on AMD processors, but the chipmaker has opted not to patch them. Continue Reading
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News
06 Mar 2020
Intel CSME flaw deemed 'unfixable' by Positive Technologies
Positive Technologies researchers discovered a previously disclosed vulnerability in the Intel Converged Security and Management Engine is worse than originally reported. Continue Reading
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News
05 Mar 2020
Risky ransomware payments on the rise, attacks increasing
Making payments to threat actors to retrieve data was once viewed in black-and-white terms. But RSA Conference attendees say attitudes about paying up have changed drastically. Continue Reading
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News
05 Mar 2020
With BEC/EAC threats rising, Proofpoint offers a new approach
Business email compromise and email account compromise attacks are increasing and evolving. To keep up with threat actors, Proofpoint says a new approach is required. Continue Reading
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News
28 Feb 2020
RSA Conference panel tackles Huawei security risks
Four panelists discussed the ban on the world's largest telecommunications equipment manufacturer in relation to to supply chain risk. Continue Reading
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News
27 Feb 2020
CrowdStrike founder: China hacking indictments are working
During his RSA Conference keynote, CrowdStrike co-founder Dmitri Alperovitch explains why the U.S. Department of Justice's indictments against Chinese hackers has been effective. Continue Reading
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Tip
26 Feb 2020
Stop business email compromise with three key approaches
Why is BEC such a popular attack? Because it works, unfortunately, tempting hackers with huge potential payouts. Learn how to keep them from lining their pockets with your assets. Continue Reading
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News
25 Feb 2020
FBI: $144 million in ransomware payments made over 6 years
In an RSA Conference 2020 session, FBI agent Joel DeCapua revealed how much money has been paid in ransoms, what the most pervasive ransomware variants are and more. Continue Reading
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Tip
12 Feb 2020
How to handle nation-state cyberattacks on the enterprise
It's only a matter of time before nation-state cyberattacks that threaten government entities today target the enterprise. Follow our expert's tips to prepare in time. Continue Reading
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Feature
10 Feb 2020
Beat common types of cyberfraud with security awareness
Hackers are taking deception to a new level, but security awareness programs are instrumental in helping employees detect various types of cyberfraud. Continue Reading
