Gmail security is poor. I got my phone stolen unlocked from my hands and Gmail could be accessed and password changed via SMS authentication.Fortunately I had an access key set from my PC and could recover it.Being the most critical app from a security POV it should be as secure as a bank's, not allowing situations like this to happen. At least it should suggest using another trusted person phone number for sms validation for example. Or not relying on sms at all.I haven't had or found this issue with Apple related apps.