Security Engineer signal: bitmask DP + state compression in a login anomaly detector context. This is a ProdMatch-owned security engineer drill, framed as a March 2026 Salesforce Account Trust simulation, not a copied platform question.
Company context
Salesforce · Account Trust
Freshness
March 2026
Product surface
login anomaly detector
ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.
For login anomaly detector, each sessions requires a subset of capabilities. Choose the smallest team of services covering all required capabilities; tie-break by lowest total risk.
Input
Output
Constraints
Concepts
required={A,B,C}, services=[AB risk 4, C risk 1] -> count=2, risk=5
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