• E-Mails

For e-mails that are not received as a plain text message, but in HTML format with images and special formatting – which is also the standard – can already be included in downloading the images in such a mail malware. Therefore, caution should be taken with emails from unknown senders.

Also file attachments always involve a certain risk as soon as one opens these. Mostly file attachments with malware in ZIP or RAR format are sent as a compressed file. If you have a good antivirus software installed, this also protects your mail program and can avert damage in advance.

Note:
File attachments from unknown senders sent in ZIP or RAR format are generally to be deleted unopened. Because we have not found a serious provider of such files sent.

• Apps from insecure sources

Although the Appstores of Google and Apple actually offer far more useful and useless apps than anyone actually needs, but now and then it just happens that one is asked to load an app from a third party.

At least here you should be suspicious, because if developers do not upload their app in the official Appstores (where they are usually tested) should also address the warning lights. Although the Appstores are not 100% error-free, they are definitely less risky than apps from insecure sources.

• Messenger Services & MMS

Messenger services such as the top dog “WhatsApp” are predestined to send malicious software in bulk. And of course, the news disguised with tempting content, of course, you do not want to miss.

Here we recommend for some time (for privacy reasons alone) either another messenger such. Threema to use, but also additionally to protect the whole thing about a virus scanner.

And even the good old MMS can bring pests on the device, since there is also the possibility to transfer files and multimedia content.

• Wi-Fi hotspots

Most public Wi-Fi hotspots sprouting from the ground like mushrooms since the abolition of disruption liability are also like a trench where the head is constantly looking out. Because in most cases (in favor of accessibility) these are not covered by the operators at all.

If you’re on a public Wi-Fi network without any protection on the move, it’ll open the door for attackers.

On the subject of risks in WLAN hotspots we have written a separate article.

• Unsafe websites

As well as on the home PC, of course also on mobile devices unsafe and even dangerous websites can be loaded. And once you have landed on such a page, sometimes after the page has been completely loaded, the child may have fallen into the well.

Because the graphics and animations contained there can also contain malware that will be active immediately. Use an anti-virus that does not even call dangerous websites, but warns you immediately of the impending danger.