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Incident

Amazon.com Inc.

Incident posture

Attack window
May 2019
Location
United States of America
Status
Historical
CIA posture
Available to members
Updated
2026-02-06 13:12

Linked entities

Victim
Amazon.com Inc.
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
May 2019
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

Amazon experienced a significant cyberattack where hackers infiltrated approximately 100 merchant accounts, diverting funds from sales and loans into external bank accounts over a six-month period. The company characterized the incident as extensive fraud, involving unauthorized access to seller systems to siphon cash, which was later disclosed in legal proceedings.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

2 techniques

Description

Between May and October 2018, unidentified hackers conducted a sustained cyberattack against Amazon.com Inc., targeting the financial accounts of merchants operating on its platform. The attackers gained unauthorized access to approximately 100 seller accounts over this six-month period, exploiting these breaches to divert funds from merchant loans and sales revenue. Amazon later characterized the incident as an "extensive" fraud operation in legal filings, though the specific intrusion methods remained undisclosed. The company confirmed the attackers systematically redirected merchant funds to bank accounts under their control, indicating a financially motivated scheme rather than data theft. No evidence suggested customer accounts or Amazon's core retail infrastructure were compromised during this campaign.

Amazon first disclosed the breach through a November 2018 legal filing in the United Kingdom, though details remained redacted until public release in May 2019. The company described the attack as "serious" but did not quantify the total financial losses incurred by merchants or specify whether affected sellers received restitution. Legal documentation served as the primary confirmation of the incident, with no contemporaneous public disclosure during the active compromise window. The targeted timeframe and merchant-specific focus indicated attackers possessed operational understanding of Amazon's seller financial systems, particularly mechanisms governing fund disbursement. No attribution to specific threat actors or groups was provided in available records.

Sources

Sources available to members: 1 source.

CSIDB