- Oct 17 - AlpineReplay - 898,681 breached accounts
- Oct 09 - Internet Archive - 31,081,179 breached accounts
- Oct 08 - Muah.AI - 1,910,261 breached accounts
- Oct 05 - Switch - 5,397 breached accounts
- Oct 01 - BudTrader - 2,721,185 breached accounts
- Oct 19 - Cuba's grid goes offline with blackout after a major power plant fails
- Oct 19 - Promising new form of antibiotic that makes bacterial cells self-destruct
- Oct 19 - Rekhta
- Oct 19 - Strep A kills half a million per year; why don't we have a vaccine?
- Oct 19 - Jury awards American Airline $9.4M from website behind 'skiplagging' hack