Company deep dives

Palo Alto Networks interviews

Proving a finding

“For 2,776 of the downstream exposures, the pipeline validated exploitability from the downstream application with a working PoC.”

Xu ZouUnit 42, Palo Alto Networks

Palo Alto Networks · 4 August 2026

Exploitability validated

Does this result prove an access-control flaw? Practise the check.

Example

“Candidate findings are not accepted just because a model reports them.”

Xu ZouUnit 42, Palo Alto Networks

Palo Alto Networks · 4 August 2026

Not accepted on a model’s word

Does this result prove an access-control flaw? Practise the check.

Example

Prioritising by exposure

“For defenders, prioritization cannot depend only on project size or direct deployment. It must also account for where the code is used.”

Xu ZouUnit 42, Palo Alto Networks

Palo Alto Networks · 4 August 2026

Where the code runs

Which devices get patched first? Practise the order.

Example

Detection and its gaps

“A single model asked to find vulnerabilities will produce too much noise and still miss important parts of the codebase or entire vulnerability classes.”

Xu ZouUnit 42, Palo Alto Networks

Palo Alto Networks · 4 August 2026

One model: noise and misses

Does this detector find enough attacks? Practise the evaluation.

Example

What AI changes

“Our experience with NOVA highlights a clear structural change: the patch window has collapsed.”

Xu ZouUnit 42, Palo Alto Networks

Palo Alto Networks · 4 August 2026

The patch window has collapsed

Which devices get patched first? Practise the order.

Example

“And attackers need not have access to the latest frontier AI model to reverse engineer patches and develop exploits automatically.”

Xu ZouUnit 42, Palo Alto Networks

Palo Alto Networks · 4 August 2026

Patches become exploits

Did the fix keep the supported behaviour? Practise the review.

Example

Last reviewed