Security Newsletter

Issue #299 · 18 August 2025

Breach in Dutch cancer screenings. Abusing Entra OAuth. Cisco and Fortinet warn of critical issues.

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News

Hi folks!

Today marks the end of the summer holiday where I live, our kids had to go back to school. Queue the sad trombone, or the Mariachi band, depending on where you stand. Either way, the peace and quiet felt nice :-) Now here's your weekly dose of infosec news. Cheers!

  • Cisco discloses maximum-severity defect in firewall software: link.
  • Fortinet warns of FortiSIEM pre-auth RCE flaw with exploit in the wild: link.
  • Norway police believe pro-Russian hackers were behind April dam sabotage link.
  • Microsoft reminds of Windows 10 support ending in two months: link.
  • Water sector expands partnership with volunteer hackers: link.
  • Black Hat/DEF CON: AI more useful for defense than hacking: link.
  • Booking.com phishing campaign uses sneaky 'ん' character to trick you: link.