Overview
- The PC-WELT summary published Thursday used a Frontier Airlines QR-code example to show that barcode data can be queried to reveal stored account details on an airline website.
- Boarding-pass barcodes often contain hidden personal data such as birthdate, passport or loyalty numbers and an attacker who has a passenger name plus a confirmation code can potentially view or change bookings.
- Using public or shared computers and printers risks credential capture because malware can log keystrokes and some printers retain copies of print jobs that include personal information.
- Public Wi‑Fi can expose login information through fake networks or unencrypted services so experts recommend using mobile data or a VPN for sensitive tasks and switching to passkeys instead of passwords where possible.
- The threat of 'juice jacking' at public USB ports is disputed by experts but low-cost steps—carry your own charger, use a power-only cable, or power devices off while charging—reduce risk and cut the chance of account takeover or malware on the road.