Emotet, a well known banking trojan used to steal sensitive information (like bank account details) from computers, has awakened after a four month long hibernation. And with a reputation for being one of the most damaging, elusive and costly malwares around, that’s no headline to ignore.

Should you be concerned? That depends: can you easily recognize suspicious emails when you see them? For example, Emotet’s surfacing strategy this time around seems to be attaching files with names such as “payment details” or “invoice” to your inbox with your name in the subject line. If you open this file, the malware then pillages your contact list and continues to spread to your coworkers, friends, and family.

This is why it is always crucial to exercise extreme caution when sending private information over the internet. If the situation seems phishy- it probably is.