Pen Drives are now-a-days most popular and convenient device for carrying your data with you. But they are also the most vulnerable to cyber threats. Pen Drives are often used on different computers and are hence the primary source of virus infections on personal computers. Not using pen drives is not a permanent solution for that reason. The solution is using digital vaccine.
Such USB vaccines are available now that would vaccinate your pen drives and make them safe.
Working of USB vaccine
The USB vaccine disables the feature Autorun which is extensively used by Cyber Scammers to enter into a system. This makes the pen drive immune to viruses unless it is formatted again.