#KrebsOnSecurity
All CosmicBytez Labs articles tagged #KrebsOnSecurity, across news, security advisories, how-to guides, and projects.
- News
FBI Arrests Ransomware Negotiation Firm Co-Founder in ShinyHunters Probe
Krebs identifies the previously unnamed Pennsylvania arrestee as Cypfer co-founder Edward Dubrovsky, accused of aiding ShinyHunters.
- News
Who's Tracking You? Use This New Service to Find Out
DecryptAds, a free tool from researcher Zach Edwards, cross-references ads.txt and sellers.json files to expose hidden ad-tech trackers and data brokers.
- News
Lessons Learned from CISA's Recent GitHub Leak
CISA has published a postmortem on a data leak in which a contractor exposed dozens of internal credentials — including AWS GovCloud keys — in a public...
- News
'Popa' Botnet Linked to Publicly-Traded Israeli Firm
Security researchers have traced the sprawling Popa Android botnet — which enslaved millions of consumer TV boxes for ad fraud and data scraping — to a...
- News
Who Runs the Ransomware Group 'The Gentlemen'?
KrebsOnSecurity investigates the identity and structure behind The Gentlemen, the second most active ransomware gang of 2026, known for offering...
- News
Alleged Kimwolf Botmaster ''Dort'' Arrested, Charged in U.S. and Canada
Canadian authorities arrested a 23-year-old Ottawa man suspected of building and operating Kimwolf, an IoT botnet that enslaved millions of devices for...
- News
Lawmakers Demand Answers as CISA Tries to Contain Data Leak
Members of Congress are demanding answers from CISA after a contractor intentionally published AWS GovCloud access keys and a trove of agency secrets on a...
- News
Canvas Breach Disrupts Schools & Colleges Nationwide
A data extortion attack against Canvas LMS defaced login pages with a ransom demand, disrupting classes and coursework at school districts and...
- News
Microsoft Patch Tuesday, March 2026 Edition
Microsoft patched 77 security vulnerabilities in March 2026 with no actively exploited zero-days, a welcome reprieve following February's five-zero-day...
- News
Feds Disrupt IoT Botnets Behind Huge DDoS Attacks
A joint operation by the US Department of Justice, Canada, and Germany has dismantled the infrastructure behind four highly disruptive IoT botnets that...
- News
Germany Doxes "UNKN," Head of RU Ransomware Gangs REvil
German authorities have publicly identified the elusive "UNKN," the operator behind the GandCrab and REvil ransomware groups, as 31-year-old Russian...