{"id":"INC-twilio-h7pykppyzdbd","kind":"incident","aliases":[],"related":[],"title":"Twilio: SMS Delivery Receipt Delays from Twilio to Surf Telecom Brazil","description":"We have completed our investigation. This event did not cause performance degradation beyond the expected behavior for this Brazilian carrier, which may retry delivery attempts for up to 24 hours before setting a final status. All systems are operating normally.","summary":null,"severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Twilio","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["incident","ops","sms","twilio","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"resolved","published_at":"2026-10-19T02:41:16+00:00","first_seen_at":"2026-10-23T19:12:22+00:00","triaged_at":"2026-10-23T20:15:19+00:00","updated_at":"2026-10-23T20:15:19+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'24':50C 'attempt':46C 'behavior':37C 'beyond':34C 'brazil':11A 'brazilian':40C 'carrier':41C 'caus':31C 'complet':24C 'degrad':33C 'delay':5A 'deliveri':3A,45C 'event':28C 'expect':36C 'final':55C 'h7pykppyzdbd':15A 'hour':51C 'inc':13A 'inc-twilio-h7pykppyzdbd':12A 'incid':17B 'investig':26C 'may':43C 'normal':61C 'op':18B 'oper':60C 'perform':32C 'receipt':4A 'retri':44C 'set':53C 'sms':2A,19B 'status':56C 'surf':9A 'system':58C 'telecom':10A 'twilio':1A,7A,14A,16A,20B 'vendor':21B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-19T02:41:16+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"twilio:h7pykppyzdbd","url":"https://stspg.io/5x8jhfr1f2sy","severity":"medium","published_at":"2026-10-19T02:41:16+00:00","modified_at":"2026-10-20T20:12:37+00:00","first_seen_at":"2026-10-23T19:12:22+00:00","fetched_at":"2026-10-26T01:17:12+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}