InfoSecBulletin Cybersecurity for mankind
Ransomware groups claimed the highest number of attacks in May, but experts believe the claims might be exaggerated.
Last month, ransomware gangs posted 450 victims to their extortion sites, which is an increase compared to the 328 victims in April. The highest number of attacks ever recorded was 484, posted by groups in July 2023.
Microsoft’s November 2026 Patch Tuesday addresses 1,093 flaws, with Outlook zero-day
Barracuda ESG flaws exploited, gaining root access
Apple, SAP, and Ivanti Patch Critical flaws Affecting Messaging, Bluetooth, and Enterprise Systems
Jailbroken DeepSeek AI Agent Conducts Two-Week Cyberattack on European Telecom
Daily Cyber security update for 10.11. 2026
IBM fixes 208 API Connect vulnerabilities, 47 critical
89 New ransomware groups emerge in 2026, claiming over 2,200 victims
Daily Cyber security update for 08.11. 2026
Japan banking crisis
Outage causes disruption at 128 japan banks: preventing ATM transaction
Daily Cyber security update for 06.11. 2026
Over a third of last month’s attacks were linked to LockBit, a group that had its website seized by law enforcement in February. Some leaders of the group claim that the takedown did not completely stop their activities, and LockBit is still operating.
LockBit has claimed to have attacked many organizations lately. However, cybersecurity experts doubt these claims and believe it’s a public relations strategy to reassure partners that their operations are running smoothly.
Allan Liska, a ransomware expert from Recorded Future, tracks and analyzes data from extortion sites, government agencies, news reports, and hacking forums. Many attacks listed on the site seem to be duplicates or old attacks that were never posted on the extortion site to begin with.
“The problem is that it is often difficult to determine what is real and what is made up as a way for LockBit to save face… Criminals are, to put it gently, unreliable narrators when it comes to victim reporting.”
