InfoSecBulletin Cybersecurity for mankind
The Australian, US, and UK governments announced sanctions against Aleksandr Gennadievich Ermakov, a Russian national connected to the 2022 Medibank hack and the REvil ransomware group.
According to a report by Intel471, Ermakov was very involved in cybercrime, working as a ransomware operator and affiliate. It is also thought that he was involved in both legal and illegal software development.
Microsoft Patches Four Critical Azure and Power Apps Vulns
Qilin Ransomware topped April 2025 with 45+ data leak disclosures
SonicWall Patches 3 Flaws in SMA 100 Devices
Top Ransomware Actively Attacking Financial Sector: 406 Incidents Disclosed
Critical (CVSS 10) Flaw in Cisco IOS XE WLCs Allows RRA
CVE-2025-29824
Play Ransomware Exploited Windows CVE-2025-29824 as Zero-Day
Hacker exploited Samsung MagicINFO 9 Server RCE flaw
CISA adds Langflow flaw to its KEV catalog
Google Fixes Android Flaw (CVE-2025-27363) Exploited by Attackers
UAP hosted “UAP Cyber Siege 2025”, A national level cybersecurity competition
The US government sentenced Russian national Vladimir Dunaev to five years and four months in prison for creating and distributing the TrickBot malware and working with ransomware operations.
“Dunaev was a malware developer for the Trickbot Group, overseeing the creation of internet browser injection, machine identification, and data harvesting codes used by the Trickbot malware,” reads the complaint against Dunaev and his co-conspirators.
Dunaev, according to the DOJ press release, created ransomware and used it to target hospitals, schools, and businesses in the USA.
This week, there were several big attacks reported. Tietoevry was targeted by an Akira attack, Veolia North America experienced an attack, and Equilend was attacked by LockBit. loanDepot shared that the January 6th ransomware attack exposed data from 16.6 million people.
