Noise generators

Have you ever heard about white noise generators?

The market is full of so-called signal jammers. They are often offered as a reliable solution against listening. But…

Modern listening devices need electricity but we do not always figure it out immediately.

How to detect distance listening

Can one protect themselves from listening through directional microphone?

Call safely

Today it is normal to arrange not only business but also private matters by telephone. Many of them are sensitive. How can one protect themselves from undesired misuse by other people?

Rights and privacy

What is the legal view of services associated with detection and protection from listening?