Loading...
CSO US First Look
The day's top cybersecurity news and in-depth coverage
May 31, 2025
Breaking RSA encryption just got 20x easier for quantum computers
New research shows that RSA-2048 encryption could be cracked using a one-million-qubit system by 2030, 20x faster than previous estimates. Hereâs what it means for enterprise security.
Read more
The 7 unwritten rules of leading through crisis
Your crisis management playbook may look fail-proof on paper, but leadership and culture offer intangibles that can make or break execution when emergency strikes.
How CISOs can defend against Scattered Spider ransomware attacks
CISOs should fortify help desk and employee defenses, enhance intrusion detection and tracking capabilities, and recognize that paying ransoms is not a viable strategy.
Will AI agent-fueled attacks force CISOs to fast-track passwordless projects?
AI agents are looming as another security headache for CISOs that could force their hand on shifting to passwordless authentication. And this could be a rare, good news for cybersecurity.
If you use OneDrive to upload files to ChatGPT or Zoom, donât
Users could potentially allow access to the entire drive because of the way Microsoft implements OAuth in OneDrive File Picker.
CISA flags Commvault zero-day as part of wider SaaS attack campaign
Threat actors exploited the Commvault flaw to access M365 secrets, allowing further breaches of SaaS applications.
âSecure emailâ: A losing battle CISOs must give up
Security wise, email has long been an outdated mode of communication in our increasingly cyber-threatened world. Itâs time we say goodbye to SMTPâs illusion of security.
© 2025
