E-ticket validators could siphon off money from the e-wallets installed in passengers’ mobile devices, Sega newspaper warns in a comment on the reform in the transportation documents for public transport, introduced by Sofia municipality as of 1 January, citing passengers who say that is what has happened to them.

It turns out that virtual transactions are possible for small sums without confirmation from the e-wallet owner (a public transport ticket in Sofia costs 1.60 Leva). The Urban Mobility Centre is aware of the problem, as it warns in its FAQ section: If you have purchased a digital transportation document (MPass) which requires validation via QR code, and your mobile device has an e-wallet you must make sure it is closed (inactive). Otherwise the validator could charge your virtual card instead of the QR code of the digital transportation document.