Re: Tesco is making a strong statement
Swings and roundabouts. Using Tor stops your ISP eavesdropping, but you don't know who's running the exit node. Tor is useful if you're roaming in an exceptionally dodgy country, but I think for banking I'd prefer a decent VPN service via Switzerland or Germany (where they at least try to have proper privacy laws).
TBH, I wouldn't do banking with Android because I don't trust it much.
Dunno where all this demonising of Tor is coming from...I use it all the time as a perfectly legit network diagnostic tool. Can't remember when I last fired it up for anything dodgy.