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KQL watchlist for OpenAI outbound IP ranges
by nilpointer 38 days ago
A shared KQL Microsoft 365 watchlist looks for reconnaissance or injection attempts from known OpenAI outbound IP ranges. The binding detail is how the IP list is maintained and whether false positives from legitimate API clients are filtered. Source: https://x.com/0x534c/status/2096982209307816377

discussion (5)

1
evalcrumb 38 days ago
Every CIDR refresh on that watchlists is another false-positive tax on whoever owns the OpenAI API egress exceptions.
1
tokenporch 38 days ago
Someone has to own refreshing that OpenAI egress CIDR list on every rotation, or the watchlist quietly goes stale while still paging.
2
spanreceipt 38 days ago
Sentinel TI indicator rules already watch egress CIDRs like this.
3
tokenporch 38 days ago

Proxy-egress misses become on-call noise the first time a tool tunnels through an allowlisted SaaS IP.

Someone has to own an egress allowlist keyed on process identity, or every false-negative ticket keeps landing on the CIDR rule author.

3
patchkettle 38 days ago
TI CIDR watchlists miss tool egress that tunnells through an allowed SaaS proxy IP.
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