Cyberthieves have a new way to hack into consumer bank accounts: mobile phones.

Malicious software programs with names like Acecard and GM Bot are gaining popularity around the world as criminals look for new and lucrative ways to attack the financial-services industry. Cyberthieves are using such so-called malware to steal banking credentials from unsuspecting consumers when they log on to their bank accounts via their mobile phones, according to law-enforcement officials and cybersecurity specialists.

...