Sir Apfelot Blog

26 January 2022

Who has access to my Apple devices and accounts?

Apple boasts that it attaches great importance to user privacy and protection. At the same time, great importance is also attached to digital networking in the family and among friends. The […]
21 January 2022
Telegram Logo

What is Telegram?

​​In 2022, smartphones and the social media and networks associated with them will no longer be an integral part of everyday life for many people. Especially in times of Corona, when proof of vaccination often has to be provided, [...]
18 November 2021

For the dark season: eufy security cameras with light

In the past few weeks, eufy, Anker's smart home brand, has presented various surveillance cameras. Models with LED light are also available for the dark season. This is the eufy L20 camera with a [...]
22 March 2021

That's how long it takes a hacker to crack your password

How secure is my email password? How quickly can my app account be cracked? And how long does it take a hacker to crack my iCloud password? Some tools on the Internet want answers to these questions [...]
14 December 2020
Cannot open app - Mac error

Reader question: The program cannot be opened because Apple cannot search for malware

If you don't download every app from the official Apple app store onto your Mac, you will eventually stumble into an error message that prevents you from opening a program or running an installer. So it happened [...]
6 August 2020

Hacking & Security - IT standard work shows means for digital security

The second, updated edition of “Hacking & Security: The Comprehensive Handbook” from Rheinwerk-Verlag has been available since the end of June. The standard work on IT security is aimed at specialists and admins, but can also be used for [...]
16 January 2020
Error message of the TinyPNG plugin under Photoshop

[Solved] Bug with TinyPNG-JPG Photoshop plugin and macOS Catalina

Almost all photos in my WordPress blog are exported from Photoshop via a special plug-in, which makes the graphics for the web particularly small. The plugin comes from the people who work under the domain [...]
16 December 2019
If the Mac cannot or does not want to open a program ...

Mac: Program XYZ cannot be opened because it was not downloaded from the App Store.

I assume that most Mac users already know how to bypass this message in macOS, but since a few beginners ask me every now and then, I would like to briefly address the topic with this guide. [...]
19 October 2019
What is the gatekeeper on the Mac?

What is the gatekeeper on the Mac and how do I turn it off?

Where in the past you could still install any program as a Mac user, you have to bypass the “gatekeeper” today. This is a monitoring tool from macOS, the purpose of which is not to spy on its user, but to prevent the user from doing so [...]