TryBench
Public Wi-Fi, Scam Calls & QR Codes
Stay safe outside the inbox: open networks, phone scams, and tampered QR codes.
Why this matters
Scammers do not only use email. Phone calls, QR stickers, and fake Wi-Fi are common ways to steal money and logins when you travel.
Open Wi-Fi Can Be Watched
On public Wi-Fi, others on the network can copy what you send. A fake hotspot with a similar name can too. Use mobile data for banking.
In real life: A café's open Wi-Fi is like talking on a shared table: neighbours can listen. Your own mobile data is a private phone call.
Real Banks Never Ask for Your OTP
A one-time code proves it is you. No bank or employer should ask you to read it out. If a caller does, hang up and call the official number yourself.
In real life: Your one-time code is like the PIN to your front door. A bank employee has no reason to ask for it, because they would never need to open your door.
Your practice task
You are travelling for work between Lagos and Nairobi. Choose the safe response in each situation.
How to do it
- Read the note in the box above.
- Read each situation.
- Choose the safest response.
- Press Run proof.
Practice it for free in the app. You get instant checks that show what you got right and what to fix. A lesson takes about two minutes and you can try as many times as you like.
Quick reference: Away-From-Desk Safety
Scammers use phones and stickers because they bypass email filters.
Public Wi-Fi: use mobile data for banking. Unexpected call: hang up, call back on the official number. QR code: prefer the official app. OTP: never share.
More lessons in this course
- Disarming Suspicious Links & IOCsDefang dangerous links and IP addresses so they cannot be accidentally clicked, and structure findings into JSON.
- Local Redaction & Data PrivacyScrub personal data locally first, and use AI redaction pipelines only with synthetic or pre-cleared text.
- Spotting Fake EmailsDetect sender mismatches, artificial urgency, and scam links with AI triage.