Everyday Digital Defense
Like Duolingo, but for Everyday Digital Defense. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through Locking the Gates and Operating in the Wild. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in Everyday Digital Defense
- Adding extra characters exponentially increases the possible combinations automated cracking tools must guess
- Predictable symbol substitutions (like replacing 'a' with '@') add very little computational resistance
- A long passphrase of random words is significantly harder to crack than a short, complex code
- Automated attack bots test leaked username/password pairs across hundreds of major websites instantly
- Reusing a password makes an obscure, poorly protected site a backdoor into sensitive accounts like email or banking
- Password managers generate and store random, complex credentials so you don't rely on memory or reuse
- Autofill features recognize real website domains and will not paste credentials into lookalike phishing sites
- Why length creates far stronger password protection against automated guessing than complex character substitutions
- A stolen password only satisfies the 'something you know' factor
- Logging in requires immediate approval or a code from a physical device you possess
- Without your physical second factor, the password alone is useless to an attacker
- How credential stuffing exploits password reuse across unrelated websites
- Attackers can trick cellular providers into moving your phone number to their own SIM card to steal SMS codes
- App-based authenticators generate one-time codes on the device without relying on the mobile network
- Physical hardware keys require direct physical insertion or tap and verify domain authenticity
- Modern phishing attacks often use polished, professional language rather than broken English
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Everyday Digital Defense the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why does swapping letters for simple symbols like '@' for 'a' do little to protect your password?
Get it right to open this lesson and 11 more in the app.
Where Everyday Digital Defense takes you
Learn how modern cyber attackers think and build reliable digital self-defense. Spot subtle scams, lock down critical accounts, and safeguard your personal data with practical habits.
- 1
Locking the Gates
- Hardening Passwords and Logins
- Deconstructing Social Engineering and Phishing
- 2
Operating in the Wild
- Securing Connections and Devices
- Limiting Blast Radius and Incident Recovery
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
Everyday Digital Defense is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Everyday Digital Defense today.
Download Tomo, search Everyday Digital Defense, and play your first lesson in under a minute.