Malcolm Heath
Principal Cybersecurity Threat Researcher
Malcolm Heath is the Principal Threat Researcher with F5 Labs. His career has included incident response, program management, penetration testing, code auditing, vulnerability research, and exploit development at companies both very large and very small. Prior to joining F5 Labs, he was a Senior Security Engineer with the F5 SIRT.
Research by Malcolm Heath (82)
Article | Oct 21, 2026
Unprompted: When AI Agents Expose Data Without an Attacker
Four new incidents, and CASI/ARS Score updates
8 min read
Article | Aug 12, 2026
Capability Is Closing the Open-Closed Gap; Security Is Not
A competitive open-weight model, Claude Fable, and Jade Puffer.
7 min read
Article | Jul 14, 2026
Adversarial Tales
A competitive open-weight model, Claude Fable, and Jade Puffer
8 min read
Article | Jun 3, 2026
Topic Bridge
CASI leaderboard shifts, and two incidents where AI was handed the keys.
11 min read
Article | May 27, 2026
The Small Model Cliff
CASI Leaderboard, Bias Jailbreak, and Three Coordinated Supply Chain Incidents
7 min read
Article | Apr 9, 2026
CASI Leaderboard Shifts: Developer Role Attack, and Three Concerning Incidents
AI Security Insights – April 2026
9 min read
Article | Mar 12, 2026
Looking at the SmarterMail API Vulnerability CVE-2026-24423
Sensor Intel Series: February 2026 CVE Trends
9 min read
Article | Dec 15, 2025
2026 Cybersecurity Predictions
Whatever you think will happen… will happen faster and with more acronyms than ever before.
13 min read
Article | Nov 24, 2025
Tracking RondoDox: Malware Exploiting Many IoT Vulnerabilities
Over a dozen exploits were used to target IoT devices.
15 min read
Article | Nov 19, 2025
Analysis of a Large-Scale DDoS Attack Against a Payment Processing Platform
The two-wave attack reached a peak of 1.8 Tbps.
4 min read
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