TTPwire Vol. 1 · MITRE ATT&CK·Tagged

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Imperva Blog

Hacking Safari with GPT 5.4

Ron Masas · 2026-04-23 · Read original ↗

ATT&CK techniques detected

2 predictions
T1055.001Dynamic-link Library Injection
84%
"says the body is opaque the renderer still materializes the opaque body into readable byte arrays during clone - time streaming combined with the stale wasm window, it becomes a sop break. the chain at a high level, the exploit became : force the target wasm memory into the bound…"
T1190Exploit Public-Facing Application
36%
"hacking safari with gpt 5. 4 when anthropic unveiled mythos and project glasswing, the reaction was immediate and polarized. some dismissed it as fear - driven marketing, while others treated it as a credible shift in the threat landscape. like with many things, the truth is prob…"

Summary

When Anthropic unveiled Mythos and Project Glasswing, the reaction was immediate and polarized. Some dismissed it as fear-driven marketing, while others treated it as a credible shift in the threat landscape. Like with many things, the truth is probably somewhere in the middle. I wanted to test that for myself, and since I recently got […]

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