#OPSEC365 215/365 Counter-surveillance starts with awareness of who might be watching. Professional surveillance involves multiple people, vehicle switches, and careful tradecraft. But most surveillance you'll encounter is amateur. A car that appears too often, someone who shows up at multiple places you go, or patterns that feel off deserve attention. Practice being aware of your surroundings without being paranoid. #OPSEC365

#OPSEC365 214/365 Granting contact access doesn't expose your data. It exposes everyone else's. Your address book is a social graph belonging to people who never consented. WhatsApp, LinkedIn, and TikTok have all used contact uploads to build graphs of non-users. Cronk's aggregation problem: the app now knows your network position without you ever posting publicly. A photo editor, a game, or a flashlight has no functional need for your contacts. Audit the permissions and revoke them. #OPSEC365

#OPSEC365 213/365 Your notification center is a summary of your digital life visible on your lock screen. Banking alerts, message previews, calendar reminders, and app notifications all appear where anyone glancing at your phone can see them. The locked screen shows a feed of your recent activity. Review your notification settings and limit what shows when your phone is locked. #OPSEC365