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ANKUSH CHOUDHARY JOHALApr 28, 2026 • 14 min read
Postmortem: Supply Chain Attack via Compromised NPM Package 11 Caused a Production Data Leak
On March 14, 2024, a single compromised NPM package – version 11.2.4 of the widely used...
#postmortem#supply#chain#attack
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ANKUSH CHOUDHARY JOHALApr 29, 2026 • 14 min read
War Story: How a Prompt Injection Attack on Our GPT-5 Chatbot and Unpatched FastAPI 0.110 Caused a Data Leak
On March 12, 2024, our team discovered a 14-hour data exfiltration window where 12,400 user PII...
#story#prompt#injection#attack
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ANKUSH CHOUDHARY JOHAL6d ago • 3 min read
War Story: How a MetaMask 11.0 Phishing Attack Stole 50 User Wallets
War Story: How a MetaMask 11.0 Phishing Attack Stole 50 User Wallets In Q3 2024, a...
#story#metamask#phishing#attack
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ANKUSH CHOUDHARY JOHALMay 1, 2026 • 3 min read
War Story: We Had an XSS Attack Because of a React 19 Unsafe InnerHTML Usage
War Story: We Had an XSS Attack Because of a React 19 Unsafe InnerHTML Usage It started as...
#story#attack#because#react
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ANKUSH CHOUDHARY JOHALMay 2, 2026 • 15 min read
War Story: How We Survived a Ransomware Attack on Our Jenkins 2.440 Instance – Fixed with GitHub Actions 2.0 and Vault 1.15
At 03:17 UTC on October 14, 2024, our Jenkins 2.440.3 instance started encrypting 14TB of build...
#story#survived#ransomware#attack
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ANKUSH CHOUDHARY JOHALApr 30, 2026 • 2 min read
Postmortem: A Ransomware Attack on Our On-Prem Data Center Taught Us to Migrate to AWS
\n At 03:14 UTC on October 17, 2023, our on-prem data center’s SIEM triggered a critical alert: 94%...
#postmortem#ransomware#attack#onprem
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ANKUSH CHOUDHARY JOHALApr 28, 2026 • 13 min read
Postmortem: Cryptojacking Attack on Kubernetes 1.34 Nodes: How We Added gVisor 1.0 and Falco 0.38
At 03:14 UTC on October 17, 2024, our on-call pager woke the entire platform team: 94% of our...
#postmortem#cryptojacking#attack#kubernetes
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ANKUSH CHOUDHARY JOHALApr 30, 2026 • 17 min read
Postmortem: A Ransomware Attack on Our On-Prem Data Center Taught Us to Migrate to AWS
At 03:17 UTC on March 14, 2023, our on-prem data center’s intrusion detection system triggered a...
#postmortem#ransomware#attack#onprem
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