Weekly Threat Bulletin – January 21st, 2026
These are the top threats you should know about this week.
F5 Labs
Analyzing React2Shell Threat Actors
1 month 1 week ago
Sensor Intel Series: December CVE-2025-55182 Trends
Analyzing React2Shell Threat Actors
1 month 1 week ago
Sensor Intel Series: December CVE-2025-55182 Trends
When AI Gets Bullied: How Agentic Attacks Are Replaying Human Social Engineering
1 month 2 weeks ago
AI Security Insights – January 2026
When AI Gets Bullied: How Agentic Attacks Are Replaying Human Social Engineering
1 month 2 weeks ago
AI Security Insights – January 2026
2026 Cybersecurity Predictions
2 months 1 week ago
Whatever you think will happen… will happen faster and with more acronyms than ever before.
2026 Cybersecurity Predictions
2 months 1 week ago
Whatever you think will happen… will happen faster and with more acronyms than ever before.
Adversarial Poetry and the Efficacy of AI Guardrails
2 months 2 weeks ago
We investigate the rise of adversarial poetry in AI security. Understand how metaphor-based exploits circumvent guardrails and the defenses we need for LLMs moving forward.
Adversarial Poetry and the Efficacy of AI Guardrails
2 months 2 weeks ago
We investigate the rise of adversarial poetry in AI security. Understand how metaphor-based exploits circumvent guardrails and the defenses we need for LLMs moving forward.
ShellShock Makes a Comeback and RondoDox Changes Tactics
2 months 2 weeks ago
Legacy bugs continue to serve attackers.
ShellShock Makes a Comeback and RondoDox Changes Tactics
2 months 2 weeks ago
Legacy bugs continue to serve attackers.
HashJack Attack Targets AI Browsers and Agentic AI Systems
2 months 3 weeks ago
A new wave of client-side attacks bypasses enterprise defenses.
HashJack Attack Targets AI Browsers and Agentic AI Systems
2 months 3 weeks ago
A new wave of client-side attacks bypasses enterprise defenses.
Fallacy Failure Attack
3 months ago
AI Security Insights for November 2025
Fallacy Failure Attack
3 months ago
AI Security Insights for November 2025
Tracking RondoDox: Malware Exploiting Many IoT Vulnerabilities
3 months ago
Over a dozen exploits were used to target IoT devices.
Tracking RondoDox: Malware Exploiting Many IoT Vulnerabilities
3 months ago
Over a dozen exploits were used to target IoT devices.
Analysis of a Large-Scale DDoS Attack Against a Payment Processing Platform
3 months 1 week ago
The two-wave attack reached a peak of 1.8 Tbps.
Analysis of a Large-Scale DDoS Attack Against a Payment Processing Platform
3 months 1 week ago
The two-wave attack reached a peak of 1.8 Tbps.
Introducing the CASI Leaderboard
4 months 4 weeks ago
Explore the new AI security index for emerging trends in AI security.
Checked
2 hours 10 minutes ago
RSS for all F5 Labs content.
F5 Labs feed