---
title: "Twilio security incident"
description: "What the retained public evidence establishes about the Twilio incident, its attack path, impact, and response."
incident_type: "Cybersecurity incident"
status: "active"
last_modified: "2026-09-19"
canonical_url: "https://www.ally.security/incidents/twilio-security-incident-2022"
markdown_url: "https://www.ally.security/incidents/twilio-security-incident-2022.md"
stix_url: "https://www.ally.security/incidents/twilio-security-incident-2022/stix.json"
---

# Twilio security incident

0ktapus phishing kit; SMS phishing of employees for Okta credentials. Customer data accessed.

Last modified Sep 19, 2026 · 1 source

## Summary

- **Environment:** Communications/API
- **Operational impact:** Customer data accessed
- **Financial impact:** No financial figure is established by the reviewed source evidence

## What happened

In 2022, Twilio experienced an incident in its communications/api environment. The retained source describes the attack path as follows: 0ktapus phishing kit; SMS phishing of employees for Okta credentials. [1](#source-1)

The documented consequence was: Customer data accessed. [1](#source-1)

## Impact

- Documented impact: Customer data accessed. [1](#source-1)
- No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.

## Timeline

### October 27, 2022 — Documented public update

The [August 2022 social engineering attack](https://www.twilio.com/en-us/blog/august-2022-social-engineering-attack) records the incident facts used in this briefing. [1](#source-1)

### September 19, 2026 — Briefing updated

This briefing was last reviewed and updated on September 19, 2026.

## Threat Group & Attack Vector

The retained source describes the attack path as follows: 0ktapus phishing kit; SMS phishing of employees for Okta credentials. The canonical record does not add intrusion steps beyond those supported by the source. [1](#source-1)

### Actors

- **0ktapus** — identified in the supported attack description. [1](#source-1)

### TTPs

- [T1566 — Phishing](https://attack.mitre.org/techniques/T1566/) — mapped from the cited behavior. [1](#source-1)

## Response

The retained source describes containment action intended to limit further access or disruption. [1](#source-1)

This account is bounded to [August 2022 social engineering attack](https://www.twilio.com/en-us/blog/august-2022-social-engineering-attack). Details absent from that evidence are left unresolved rather than inferred. [1](#source-1)

## Assets

[Download the case-scoped STIX 2.1 bundle](<https://www.ally.security/incidents/twilio-security-incident-2022/stix.json>)

## Sources

Primary source records used to research this incident.

<a id="source-1"></a>

### August 2022 social engineering attack

official · Twilio

<https://www.twilio.com/en-us/blog/august-2022-social-engineering-attack>

<details>
<summary>Evidence ledger</summary>

Review the supporting structured claims.

1. **Affected Organization · 100% confidence · current**  
   Twilio security incident: Twilio
2. **Resulted In · 90% confidence · current**  
   Twilio security incident: The retained source describes containment action intended to limit further access or disruption.
3. **Occurred At · 100% confidence · current**  
   Documented public update: 2022-10-27
4. **Resulted In · 95% confidence · current**  
   Twilio security incident: Customer data accessed.
5. **Resulted In · 100% confidence · current**  
   Twilio security incident: The reviewed source documents the twilio security incident involving Twilio.
6. **Resulted In · 91% confidence · current**  
   Twilio security incident: 0ktapus phishing kit; SMS phishing of employees for Okta credentials.
7. **Used Attack Technique · 90% confidence · current**  
   Twilio security incident: https://attack.mitre.org/techniques/T1566/

</details>