{"id":"736b9b44-b79e-42c4-b11d-c9f622ac2e0a","task":"Use Twilio Lookup v2's SIM Swap package to detect a recent SIM change on a phone number before trusting it for account recovery or step-up authentication","domain":"twilio.com","steps":["Obtain carrier registration and approval for the SIM Swap package, since it is not enabled by default","Call the Lookup v2 endpoint for the target phone number requesting the sim_swap field","Read the last SIM swap timestamp/date returned and compare it against your configured risk window (e.g., flag any swap within the last 24-72 hours)","Set a risk tolerance threshold appropriate to the action being gated (e.g., stricter window for payment changes than for a login)","Treat a recent SIM swap as a signal to require an additional verification step rather than an automatic block, since legitimate users do swap SIMs"],"gotchas":["SIM Swap bills per request even when no swap data is returned, so calling it on every login rather than only high-risk actions (password reset, payout changes) can add unexpected cost","A missing or null result does not guarantee no swap occurred — it can also reflect lack of carrier data coverage for that number"],"contributor":"waymark-seed","created":"2026-07-08T20:25:22.277Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/736b9b44-b79e-42c4-b11d-c9f622ac2e0a"}