97
Password managers, why you need one
Reusing passwords means one breached site compromises every account using that password; a password manager generates and stores a unique strong password for each site. Free options work as well as paid ones for most people's needs.
98
Two-factor authentication, set it up everywhere
2FA requires a second proof of identity beyond your password and stops the vast majority of account takeovers even when a password leaks. An authenticator app, not SMS, is the more secure option where offered.
99
Spotting phishing emails and texts
Urgency, unexpected attachments, and a mismatched sender address are the classic red flags. When in doubt, go directly to the company's website or app yourself rather than clicking any link in the message.
100
Backing up your data
The 3-2-1 rule: three copies of anything important, on two different types of storage, with one copy off-site. A backup you've never tested restoring isn't a real backup — check it works before you actually need it.
102
Recognizing online scams
If an offer, prize, or refund seems unusually generous or urgent, that's the scam working as designed. Never send money, gift cards, or crypto to someone you've only interacted with online, no matter how convincing the story.
103
Basic computer troubleshooting
Restarting genuinely fixes a large share of everyday tech problems by clearing stuck processes and temporary memory issues. Search the exact error message before panicking — someone else has almost always hit the same one.
104
Understanding software updates
Security patches, not just new features, are usually the real reason to update promptly — many breaches exploit known vulnerabilities people simply hadn't patched yet. Turn on automatic updates for your OS and browser at minimum.
105
VPNs, what they actually do
A VPN encrypts your internet traffic and hides your IP, which matters most on public WiFi where others on the same network could otherwise snoop. It doesn't make you fully anonymous online — don't rely on it for more than it does.
106
Protecting your identity online
Freeze your credit with all three bureaus if you're not actively applying for anything — it's free and blocks new accounts opened in your name. Monitor your bank and credit statements monthly rather than only when something feels wrong.
107
Email organization that actually works
Unsubscribe aggressively from anything you don't read — a cluttered inbox is how important emails get missed. Filters and labels set up once save far more time than manually sorting the same categories for years.
108
Cloud storage basics
Keep anything irreplaceable synced to at least one cloud service in addition to your device — a lost or broken phone shouldn't mean lost memories. Understand your plan's storage limits before you're surprised.
109
Setting up a home WiFi network securely
Change the router's default admin password immediately — the factory default is one of the most common home network vulnerabilities. Use WPA3 or WPA2 encryption and a strong, unique WiFi password.
110
Digital minimalism, cutting the noise
Turn off non-essential notifications entirely rather than trying to selectively manage a flood of them. A weekly or monthly check-in on social media accomplishes most of what daily scrolling does, with a fraction of the time cost.
111
Managing subscriptions you forgot about
Free trials that silently convert to paid subscriptions are a common source of unnoticed recurring charges — review statements for anything unfamiliar every few months. Several apps and bank features now flag recurring subscriptions automatically.