Security News The biggest cybersecurity and cyberattack stories of 2023


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Apr 24, 2016
2023 was a big year for cybersecurity, with significant cyberattacks, data breaches, new threat groups emerging, and, of course, zero-day vulnerabilities.

Some stories, though, were more impactful or popular with our 22 million readers than others.

Below are fourteen of what BleepingComputer believes are the most impactful cybersecurity stories of 2023, with a summary of each.
14. The 23andMe data breach
13. Hosting firm says it lost all customer data after ransomware attack
12. Anonymous Sudan hacktivists show that DDoS attacks can impact the largest tech firms
11. New acoustic attack steals data from keystrokes with 95% accuracy
10. PayPal accounts breached in large-scale credential stuffing attack
9. Dish Network goes offline after likely cyberattack, employees cut off
8. GoDaddy: Hackers stole source code, installed malware in multi-year breach
7. MGM Resorts cyberattack shuts down IT systems after cyberattack
6. Hackers compromise 3CX desktop app in a supply chain attack
5. Barracuda says hacked ESG appliances must be replaced immediately
4. Massive ESXiArgs ransomware attack targets VMware ESXi servers worldwide
3. Brazil seizing Flipper Zero shipments to prevent use in crime
2. The Operation Triangulation iPhone attacks
1. The MOVEit Transfer data theft attacks

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