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This article reviews several high‑profile incidents where operations staff deleted or sabotaged critical databases, detailing the legal consequences, financial losses, and lessons for improving security and operational safeguards.
The author recounts a 2018 incident where a cloud disk snapshot was unintentionally made public, exposing customer data, and shares a detailed reflection on the operational mistakes, risk management failures, and recommended safeguards for high‑risk cloud operations.
In late February 2023, a core operations engineer at Weimob maliciously accessed the internal network and deleted production data, causing a 24‑hour outage of numerous merchant mini‑programs, leading to over HK$1 billion in market value loss and prompting legal action.
The article examines the disastrous 2018 TSB bank data migration, detailing how rushed system replication, inadequate testing, and complex micro‑service architecture caused massive data loss, regulatory fallout, and costly remediation, while highlighting broader lessons for IT operations and resilience in financial services.
The 2005 Mizuho Securities “fat‑finger” incident, caused by a trader’s input error and a hidden bug in the Tokyo Stock Exchange’s Fujitsu‑built trading system, led to a ¥400 billion loss, sparking extensive litigation that highlighted responsibilities for software bugs, system testing, and operational risk management.