One of the most common ways to infiltrate malware into computers is still infected email attachments. Therefore, you should always pay more attention before double-clicking on the attachment. The sender, subject and e-mail text should be consistent and plausible.

Have you ever heard of the so-called 3-second security check?

First think, then click is the motto.
The 3-point security check helps you to better rate an email in your inbox:
You should ask yourself three key questions before opening an email:

1. Is the displayed sender known and identical to the true sender of the email?
2. Does the subject and the text make sense?
3. Is an attachment expected from the sender?

The sender should be carefully examined because it can be deceptively genuine fake. Senders that contain the name of known online service providers are popular. An imprecisely formulated email subject such as your invoice or reminder points to a spam mail. However, more and more often spam mails with well imitated subject lines are circulated. A closer look is therefore absolutely necessary. 
Special care should be taken with emails with attachments. If you receive an invoice email from an online shop in which you are registered, although you have not ordered anything, then it is probably a mail with malware.

If an email does not appear credible after checking the 3 points, then it should be deleted. In case of doubt, you should ask the sender if this email was sent by him before opening it.

Some mistakes concerning email security are persistent. We'll clean it up today and show you how you can increase the security when using emails with a few tips and tricks.