#OPSEC365 140/365
Phones in gym locker rooms are recording devices everyone ignores.
People scroll their phones while changing, and those phones have cameras. Gym mirror selfies often capture other people in the background. The social norm against locker room recording doesn't prevent it from happening constantly.
Be aware of who has a phone out when you're in spaces where you expect privacy.
#OPSEC365
When one XMR hits six figures, you'll be pricing things in nanoneros and the math will still work.
#OPSEC365 136/365
Security camera footage of you exists in dozens of databases.
Convenience stores, ATMs, gas stations, office buildings, and parking garages all record continuously. Most footage is overwritten in days or weeks, but clips of interest get saved indefinitely. You're recorded hundreds of times daily in any urban area.
Walk through your typical day and count how many cameras might have captured you.
#OPSEC365
#OPSEC365 129/365
Medical devices transmit health data you might not realize is being collected.
CPAP machines report your sleep patterns to insurance companies who verify usage for coverage. Insulin pumps log glucose readings and dosing. Pacemakers store cardiac data accessible to manufacturers and doctors. This data can be subpoenaed and has been used in criminal cases.
Understand what data your medical devices collect and who has access to it.
#OPSEC365
Rowhammer: flipping bits in DRAM by repeatedly accessing adjacent memory.
"We show that accessing DRAM at high frequency can cause bit flips in nearby rows, allowing privilege escalation."
Flipping Bits in Memory Without Accessing Them: An Experimental Study of DRAM Disturbance Errors by Yoongu Kim et al. (2014)
https://users.ece.cmu.edu/~yoonguk/papers/kim-isca14.pdf
#OPSEC365 128/365
Shipping notification services know your address and delivery patterns.
UPS My Choice, FedEx Delivery Manager, and USPS Informed Delivery centralize package tracking. They see what you're ordering, from whom, how often, and your home address. Sign up once and they have a unified view of your receiving habits.
Even if you only use one of them, opting in puts your address into another marketing database.
#OPSEC365
#OPSEC365 127/365
When you upload your resume to job boards, it enters databases you'll never fully escape.
Indeed, Monster, ZipRecruiter, and countless smaller boards retain resumes indefinitely. That version of your resume from 2015 with your old address and phone number still exists somewhere. Recruiters buy access to search these archives.
The version with your old address and phone number is still in job board archives from years ago.
#OPSEC365
#OPSEC365 126/365
Your LinkedIn profile is a dossier you wrote about yourself.
Employment history with dates, education, certifications, skills, connections, endorsements, group memberships, and activity patterns. Recruiters and employers see it. So do social engineers, competitive intelligence firms, and anyone researching you professionally.
View your LinkedIn profile as if you're trying to learn about a stranger and see what stands out.
#OPSEC365
#OPSEC365 125/365
Corporate wellness programs track your health data in exchange for insurance discounts.
Step challenges using company fitness trackers, health assessments, biometric screenings, and voluntary surveys all feed databases your employer and their insurance partners can access. The incentives aren't free money, they're payment for your health data.
Employers on self-insured plans have incentives to know which employees are sick.
#OPSEC365
Power analysis side-channel attacks on cryptographic hardware.
"Measuring power consumption during cryptographic operations can reveal secret keys."
Differential Power Analysis by Paul Kocher, Joshua Jaffe, and Benjamin Jun (1999)
https://www.paulkocher.com/doc/DifferentialPowerAnalysis.pdf
Rome fell when the government debased the currency and tracked citizens through tax collectors,
two thousand years later, CBDCs promise to automate both at scale, and Monero is the only exit.
#OPSEC365 124/365
RFID chips in your wallet and pocket can be scanned without your knowledge.
Transit cards, hotel keycards, office badges, and many credit cards hold RFID or NFC chips readable at short range with a $30 reader. Walk past one and the unique ID gets logged with no visible interaction.
US e-passports differ: shielded in a metal cover, locked by an optical key printed inside, unreadable while closed. The rest of your pocket isn't.
#OPSEC365
