Newly identified wiper malware “PathWiper” targets critical infrastructure in Ukraine
Cisco Talos observed a destructive attack on a critical infrastructure entity within Ukraine, using a previously unknown wiper we are calling “PathWiper.”
A new author has appeared
Talos Content Manager Amy introduces themself, shares her unconventional journey into cybersecurity and reports on threats masquerading as AI installers.
Cybercriminals camouflaging threats as AI tool installers
Cisco Talos has uncovered new threats, including ransomware like CyberLock and Lucky_Gh0$t, and a destructive malware called Numero, all disguised as legitimate AI tool installers to target victims.
Scarcity signals: Are rare activities red flags?
Talos analyzed six months of PowerShell network telemetry and found that rare domains are over three times more likely to be malicious compared to frequently contacted ones.
Ghosted by a cybercriminal
Hazel observes that cybercriminals often fumble teamwork, with fragile alliances crumbling over missed messages. Plus, how UAT-6382 is exploiting Cityworks and what you can do to stay secure.
UAT-6382 exploits Cityworks zero-day vulnerability to deliver malware
Talos has observed exploitation of CVE-2025-0994 in the wild by UAT-6382, a Chinese-speaking threat actor, who then deployed malware payloads via TetraLoader.
Duping Cloud Functions: An emerging serverless attack vector
Cisco Talos built on Tenable’s discovery of a Google Cloud Platform vulnerability to uncover how attackers could exploit similar techniques across AWS and Azure.
Xoxo to Prague
In this week’s newsletter, Thor inspects the LockBit leak, finding $10,000 “security tips,” ransom negotiations gone wrong and a rare glimpse into the human side of cybercrime.
Microsoft Patch Tuesday for May 2025 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for May of 2025 which includes 78 vulnerabilities affecting a range of products, including 11 that Microsoft marked as “critical”. Microsoft noted five vulnerabilities that have been observed to be exploited in the wild. CVE-2