FBI Blames Contractor’s Missed Patch for ShinyHunters Breach

Which Test Metrics Actually Matter and Which Ones Are Vanity?

Your last engineering review probably included a code coverage number. Someone reported it, a chart trended up and to the right, and everyone nodded.

• Coverage alone doesn't guarantee test quality or bug detection
• Four metrics predict software quality: escaped defects, change failure rate, MTTR, flake rate
• These metrics map directly to business outcomes like trust and downtime costs

2h ago ·dev.to

How to Reuse Browser Sessions Instead of Logging In Every Time

How to Reuse Browser Sessions Instead of Logging In Every Time One of the most repetitive parts of browser automation is authentication.

2h ago ·dev.to

Why Your Payment Got Charged Twice: Idempotency Keys Explained

Maya taps Pay for a $20 ride. Ten seconds later: request timed out. The app retries, and Maya gets charged $40 . The retry went through. So did the first attempt.

• Idempotent operations can be repeated without changing outcome beyond initial application
• Idempotency keys are unique strings included in payment requests to prevent duplication
• Server stores response to idempotency key; same key triggers returning saved response

2h ago ·dev.to

Network Forensics: Understanding TCP/IP Protocols (Week 3)

This week, we are focusing into the analysis of TCP/IP protocols, focusing on how to examine network flows, extract data, and analyze higher-layer traffic. What is Flow Analysis?

2h ago ·dev.to