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accenture.com
Accenture
Confidence HighSep 1, 2017accenture.com

Accenture AWS S3 Bucket Data Exposure

PatternExternal actor · Hacking · Confidentiality impact

Security researchers at UpGuard discovered four unsecured Amazon Web Services (AWS) S3 storage buckets belonging to Accenture. These misconfigured buckets exposed sensitive data related to the Accenture Cloud Platform, including nearly 40,000 plaintext passwords, access keys for other cloud services (Azure and Google accounts), private digital signature keys, certificates, internal emails, and confidential customer data. Accenture was privately notified in mid-September 2017 and remediated the vulnerability within 24 hours.

Signal date
Sep 1, 2017
Updated
Jul 8, 2026
Confidence
High
Sources
1 source
accenture.com logo

Accenture

Sector
Information
Signals
2 linked

Signal context

First seen: Sep 1, 2017

Last updated: Jul 8, 2026

Status: Public signal

Key points

  • Four unsecured AWS S3 storage buckets were discovered by UpGuard.
  • Exposed data included 40,000 plaintext passwords, access keys (Azure, Google), private digital signature keys, certificates, internal emails, and confidential customer data.
  • The exposure was related to the Accenture Cloud Platform.

Signal analysis

Beta

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Affected organization
Accenture logo
Accenture

Sector: Information

Likely country: Location not provided

Estimated
Threat source
Hacking, Error activity

Watch internet-facing systems, credential abuse and exploit activity.

  • Source type: outside the affected organization
Business impact
Potential data exposure

Impact area: Confidentiality

Likely asset: User or customer data, Server or cloud data store

Trend context
80 signals with similar action pattern
  • 20 signals in the same sector
  • 88 signals with the same likely impact area
  • 2 signals linked to this organization/domain
Mentioned entities
AccentureData DisclosureUpGuardAmazon Web ServicesAWSAccenture. TheseAccenture Cloud PlatformAzure and GoogleAccentureFour

External sources

Related signals

Grouped by why the signal is relevant.

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jcom.co.jp logoJcomJun 28, 2026
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JCOM Co., Ltd. Affected by KDDI Corporation Data Breach

JCOM Co., Ltd., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. JCOM customers' email addresses and passwords may have been compromised.

kddi-web.com logoKddi WebJun 28, 2026
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KDDI Web Communications Customer Data Affected by KDDI Email System Breach

KDDI Web Communications, a subsidiary of KDDI, was impacted by the data breach in KDDI Corporation's email system, disclosed on June 28, 2026. The incident, caused by a third-party software vulnerability, led to the potential exposure of up to 14.2 million email addresses and passwords belonging to customers across six Japanese ISPs, including KDDI Web Communications.

stnet.co.jp logoStnetJun 28, 2026
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STNet, Inc. Affected by KDDI Corporation Data Breach

STNet, Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. STNet customers' email addresses and passwords may have been compromised.

Accenture AWS S3 Bucket Data Exposure | Shadow Tier