But there’s a lot more to it than just a name and a phone number. Email signatures can include your company logo, job title, contact information, social media links, and sometimes even a personal sign-off or legal disclaimer.
Now, here’s where it gets interesting – and a bit alarming. Most of us never think about the security implications of these signatures. We see them as a professional necessity, a way to make our emails look polished and trustworthy. But for cyber criminals, email signatures can be a goldmine.
Think about it. Your email signature is a digital business card. It’s in every email you send, seen by colleagues, clients, and anyone else you communicate with. This consistency is great for branding and trust-building, but it also makes it an attractive target for those with malicious intent.
Cyber criminals can use the information in your signature to create highly convincing phishing emails. These emails look and feel legitimate because they mimic the exact format and style of your regular communications. All it takes is a little bit of your information – your name, job title, and company logo – and they’re halfway to creating a scam that could trick even the most vigilant among us.
Imagine that one day, you receive an email that looks like it’s from a supplier. Their email signature matches the email signature in all their other emails perfectly: Same logo, same layout, same contact information.
You don’t give it a second thought. But the email isn’t from your supplier. It’s from a cyber criminal who’s managed to spoof the signature. You click the link, and just like that, you’ve been scammed. This isn’t just a one-off incident. It’s a common tactic used in phishing attacks. When a phishing email looks as genuine as that, it’s easy to see how even the savviest person could be fooled.