While out of the office, employees are not protected from hackers, applications they use may have vulnerabilities, their computers and mobile devices can be infected with viruses and Trojans that steal banking and payment system access passwords and money from bank accounts.
Employees regularly connect to the company's network via their device, and thus put confidential data and money at risk—not only their personal assets but corporate too. Incidents when malware gets onto a local network from personal devices, including handhelds, account for up to 70% of intrusions.
In addition, banks often send SMS confirmations to maintain security of transactions. There are malignant programs that can modify such confirmation messages. An anti-virus guarantees that incidents when money is stolen from accounts will never be concealed.