Evergreener

Woman Becomes a 'Victim' of Surveillance Pricing

Surveillance Pricing Why Some Consumers Pay More Online Than Others

Personalized Prices Online? Online stores use personal data to adjust prices. This means surveillance pricing can become costly.

From Kitchen to Smart Home Who Really Stands Behind Lidl's Silvercrest Brand?

Under the name Silvercrest, Lidl has been selling kitchen appliances and electronic items from various manufacturers for decades.

A woman stands in front of many televisions.

Starting in 2026 Well-Known TV Manufacturer Halts Production

The rise of the Grundig brand began in the 1950s with the radio device "Heinzelmann." But how is the company faring today?

Woman in a blue T-shirt and black blazer looks at her smartphone

Check Now! These Secret Codes Reveal if Your Smartphone Is Being Monitored

With simple secret codes, you can check if a smartphone is being monitored. Forwarding and spying can then be easily stopped.

Live Images and Floor Plans Freely Accessible AI Developer Discovers Major Data Breach in Vacuum Robots

A KI expert accidentally discovers a massive vulnerability in vacuum robots, gaining access to 7,000 devices and their data.

From Lidl What You Should Know About the Parkside Tool Brand

Parkside is considered an affordable alternative to Bosch or Makita. But who actually manufactures these tools?

Robotron Computer KC 85 from around 1985. Many computer owners at the time used a small television as a monitor.

History of PCs This East German Computer Was Meant to Beat the C64–and Failed Spectacularly

C64 in the West, KC 85 in the East: Why the East German computer couldn't compete technically and economically.

Star Wars is one of the most popular film franchises—not least because of its thrilling lightsaber battles.

It even cuts through steel. Star Wars Lightsabers Are Real!

Many believe the lightsaber from Star Wars is a thing of the future. However, Canadian inventors have already built a functional version.

Smartphones with outdated operating systems will no longer have access to WhatsApp.

Millions of Devices Affected WhatsApp Will Soon Stop Working on These Smartphones

Current System Requirements for WhatsApp on iOS and Android: Check if Your Device Is Still Supported

An Amazon package in front of a doorstep

Amazon Customers Concerned How the Dangerous "Brushing" Trick Works

At Amazon and other online retailers, a practice known as "brushing" can occur. We explain this phenomenon.

Anker sells not only power banks but also headphones, cables, and other products.

From Amazon Secret to Global Brand What Lies Behind Anker–and Why Its Products Are So Popular

Anker sells a variety of tech products—from power adapters to power banks, headphones, and webcams. But who is actually behind Anker?

More Data Protection How to Disable Meta AI in WhatsApp Chats

A new switch partially increases privacy by deactivating Meta's AI in WhatsApp chats.

Existed 4,000 Years Ago Emojis Are Much Older Than You Think

How long have emojis actually been around? A closer look at the history of emojis reveals that their origins date back quite a while.

By acquiring Activision Blizzard, Microsoft would become the world's largest game publisher.

Employee Reveals Only Sold Three Times: Microsoft's Biggest Flop Ever

Not everything from Microsoft has been a success. One software remains remembered as its greatest failure to this day.

From the Early Days of the World Wide Web How the First Computer Worm Crippled the Internet

The first computer worm was once named the Morris worm. TECHBOOK reveals the story behind its namesake.

Cat Content Why Do Cat Videos Work So Well on Social Media?

Few people find cat content anything but cute or amusing. But why is that? TECHBOOK investigated.

Rollei's Most Famous Camera: the Rolleiflex

Company Profile What Ever Happened to the Camera Manufacturer Rollei?

Rollei, originally known as "Franke & Heidecke," gained worldwide recognition in 1929 with the Rolleiflex. The brand has since been completely reoriented.

How Stable Is the Grid? Can the Internet in Germany Be Shut Off at the Push of a Button?

Can the internet simply be shut down? TECHBOOK explains why this is technically and legally nearly impossible in Germany.

From Cable to Voice Why the History of the Remote Control Begins With Radio

From Tesla Experiment to Smart TV: How the Remote Control Became Everyday—and Might Soon Disappear

Security Risk Why You Should Definitely Delete Your Old Email Addresses

They require no maintenance, so many people leave them unused. However, old email addresses pose serious security risks.

Keep an Overview PayPal Subscriptions Under Control: How to Find and Cancel Hidden Payments

Learn how to find, cancel, and update payment methods for PayPal subscriptions—all explained step by step.

In the 1990s, Syncronys sold millions of copies of SoftRAM95.

Counterfeit Software SoftRAM: One of the Biggest Hoaxes in Software History

SoftRAM95 Promised Double Memory–But the Software Was a Hoax. How the Fake Became a Million-Dollar Success.

Stylish, Brilliant, Failed Apple's Greatest Successes–and the Most Spectacular Flops in Company History

Apple didn't just grow through successes. These flops paved the way for the iPhone, Mac, and more.

The Apple Macintosh is a cult favorite for many. However, not all of the company's products have enjoyed the same status.

From Polo Shirt to Gaming Console These Apple Products Are Almost Forgotten Today

There is a range of obscure products from Apple's history that most people have never heard of.

TCL is primarily known in this country for its affordable televisions.

More Than Just Affordable TVs What Really Lies Behind the TV Brand TCL

The manufacturer TCL is primarily known outside of China for its televisions. However, the company offers much more.

Detergent Instead of a Graphics Card Online Shopping Can Be Costly–A Recent Case Shows Why

Ordered expensive tech but received worthless junk? Consumer advocates recommend keeping a few tips in mind when making online purchases.

Never Buy Too Expensive Save Money Instantly on Amazon With This Free Tool

Camelcamelcamel is a price tracker that shows when a product on Amazon was at its lowest price. It sends you an email when the price drops again.

Deepfakes: Your Own Image in the Digital Realm

Growing Danger How to Check if Your Photo Is Being Used for Deepfakes

Suspect your photo was used in deepfakes? TECHBOOK explains how to best verify this.

Current Statistics The Most Successful Animated Films of All Time

Do you know the most successful animated film of all time? TECHBOOK presents the most successful movies from Disney, Pixar, and others.

Did You Know? These Companies Have Surprisingly Built Smartphones

From Automakers to Battery Manufacturers: These Companies Surprisingly Released Their Own Smartphones