M-209 cryptographic device.

Cybersecurity Basics:
Use Social Media Carefully

Be Careful On Social Media

Everything you post on social media sites is now out of your control and it belongs to the social media companies.

Oh, you might be able to delete it or change it some of the time. But generally speaking, all of your postings belong to the social media company, who is free to sell it or repost it or do whatever they want with your data.

It gets worse.

The more you post on Facebook and other social media sites, the easier you make it for criminal gangs to steal your identity. Most Facebook users share information that makes it easy to answer the "security questions" used on many websites. Criminal gangs download and analyze Facebook content to figure out who knows who and what interests they share. They then use that to generate convincing scam emails.

This image requires a Facebook GOLD Account.

Many people seem to use Facebook and other social media for nothing but forwarding hoaxes. Use Snopes and Politifact to find the truth.
Snopes.com Politifact.com

When you give Facebook access to your contact list, they sell it to marketing companies. Then the "People you may know" suggestions can expose sensitive information including:
Medical and psychiatric history Family secrets Other sensitive information

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