Security Affairs newsletter Round 544 by Pierluigi Paganini – INTERNATIONAL EDITION

Security Affairs’ Round 544 INTERNATIONAL EDITION, published by Pierluigi Paganini on 5 October 2025, presents a curated weekly digest of the latest security stories from the international press. The newsletter highlights a surge in activity, including GreyNoise detecting a 500% uptick in scans targeting Palo Alto Networks portals, and reports that U.S. CISA has added several flaws to its Known Exploited Vulnerabilities catalog.

It also covers ShinyHunters’ data leak site and new ransomware victims, ProSpy and ToSpy campaigns posing as Signal and ToTok in the UAE, and Google warning of a Cl0p extortion campaign affecting Oracle E-Business users. Further items span CERT-UA’s warnings about a CABINETRAT backdoor used against Ukraine, Allianz Life’s data breach impacting millions, and allegations that a cybercrime group breached Red Hat’s private GitHub repositories. The roundup closes with a mix of OpenSSL updates, a confirmed WestJet breach, and other notable security stories from around the world.