Security

A Brief History of Computer Viruses and How to Stay Safe

Unfortunately, computer viruses have gotten more and more dangerous and have even spread to mobile devices. Viruses are now able to steal larger amounts of information, such as personal or financial information. They can even infect devices to the point of malfunction where devices can’t even be used normally, or may need to be discarded. As we further trust the Internet and computers with all of our personal information, viruses and malware will only get stronger and more common.

Luckily, in today’s age you can protect yourself from most kinds of malicious threats. DFNDR’s Security Scan feature helps to monitor and protect your device from threats on its memory and SD card. Whenever you install a new app, go to a website, or even when you receive an email or text (perhaps with a suspicious link), you can run a full scan of your device in order to check for viruses and security threats. This will prevent hackers from accessing your information or delivering any potential infections to your device. Click here to run a full virus scan on your device now:

The History of Viruses

John Von Neumann gave a lecture at the University of Illinois in 1949 on the theory of self-replicating computer programs. He later had his essay published. His design for a self-replicating program is considered the first work on computer viruses. Many academics worked off of Von Neumann’s work, including Veith Risak in 1972. Veith wrote an article that went into more detail and described a virus that could work on computer technology around that time. In 1980, Jurgen Kraus wrote about how computer viruses could behave very similarly to biological viruses.

1982 marked the first year where the modern computer virus manifested itself in the way we associate and understand viruses today. “Elk Cloner” was created by a high school student and was written on a floppy disk. It would activate when the disc was used on other computers, and on its 50th activation, it would display a poem on the screen. This was the first time a computer virus would appear outside the environment it was created within. The first social networking virus, however, came about in 2001. It was known as Win32.5-0-1 and it targeted users of MSN Messenger to track IP addresses, contacts, and browser history. One thing is for certain: the malware today certainly doesn’t resemble the malware of the 20th century anymore.

PSafe Newsroom

The dfndr blog is an informative channel that presents exclusive content on security and privacy in the mobile and business world, with tips to keep users protected. Populated by a select group of expert reporters, the channel has a partnership with dfndr lab's security team. Together they bring you, first-notice news about attacks, scams, internet vulnerabilities, malware and everything affecting cybersecurity.

Recent Posts

Google Drive Stopped Photos Backup: What Changed

A Google backup change can be easy to miss. As of August 10, 2026, Drive…

57 years ago

IC3 Scam: How to Spot Fake FBI Recovery Offers

Would you trust someone who claims to work for the FBI, knows details about a…

57 years ago

QR Code Scam: How to Spot a Fake QR Code Before You Scan It

Do you check a QR code before you scan it? A QR code scam takes…

57 years ago

How to Lock Apps on Android With a PIN, Password, or Fingerprint

Want to know how to lock apps on Android with a PIN, password, pattern, or…

57 years ago

Does Incognito Mode Hide Everything You Do Online? Myth vs. Fact

When you open an Incognito tab, do you assume websites, internet providers, and other people…

57 years ago

How to See Which Devices Are Signed In to Your Google Account

An old phone in a drawer, a tablet you traded in, or a computer you…

57 years ago