---
title: "Accenture security incident"
description: "What the retained public evidence establishes about the Accenture 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/accenture-security-incident-2021"
markdown_url: "https://www.ally.security/incidents/accenture-security-incident-2021.md"
stix_url: "https://www.ally.security/incidents/accenture-security-incident-2021/stix.json"
---

# Accenture security incident

LockBit. 6TB data claimed stolen, $50M demand.

Last modified Sep 19, 2026 · 1 source

## Summary

- **Environment:** IT/Consulting
- **Operational impact:** 6TB data claimed stolen, $50M demand
- **Financial impact:** No financial figure is established by the reviewed source evidence

## What happened

In 2021, Accenture experienced an incident in its it/consulting environment. The retained source describes the attack path as follows: LockBit. [1](#source-1)

The documented consequence was: 6TB data claimed stolen, $50M demand. [1](#source-1)

## Impact

- Documented impact: 6TB data claimed stolen, $50M demand. [1](#source-1)
- No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.

## Timeline

### August 11, 2021 — Documented public update

The [Accenture confirms hack after LockBit ransomware data leak threats](https://www.bleepingcomputer.com/news/security/accenture-confirms-hack-after-lockbit-ransomware-data-leak-threats/) 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: LockBit. The canonical record does not add intrusion steps beyond those supported by the source. [1](#source-1)

### Actors

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

### TTPs

- No specific MITRE ATT\&CK technique is currently mapped for this case.

## Response

The reviewed source does not describe containment, notification, or restoration steps in enough detail to summarize them responsibly.

This account is bounded to [Accenture confirms hack after LockBit ransomware data leak threats](https://www.bleepingcomputer.com/news/security/accenture-confirms-hack-after-lockbit-ransomware-data-leak-threats/). 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/accenture-security-incident-2021/stix.json>)

## Sources

Primary source records used to research this incident.

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

### Accenture confirms hack after LockBit ransomware data leak threats

news · BleepingComputer

<https://www.bleepingcomputer.com/news/security/accenture-confirms-hack-after-lockbit-ransomware-data-leak-threats/>

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

Review the supporting structured claims.

1. **Resulted In · 95% confidence · current**  
   Accenture security incident: LockBit.
2. **Occurred At · 100% confidence · current**  
   Documented public update: 2021-08-11
3. **Resulted In · 86% confidence · current**  
   Accenture security incident: 6TB data claimed stolen, $50M demand.
4. **Affected Organization · 100% confidence · current**  
   Accenture security incident: Accenture
5. **Resulted In · 100% confidence · current**  
   Accenture security incident: The reviewed source documents the accenture security incident involving Accenture.

</details>