What are some sophisticated types of spyware that are used by intelligence agencies?

There are lots of sophisticated kinds of spyware used by intelligence firms. A few of these include keyloggers, which record every keystroke made by a user; remote access tools, which allow an aggressor to get control of a victim's machine; and malware that is designed to take delicate data or passwords.

One particularly advanced kind of spyware is referred to as a rootkit. Rootkits are designed to conceal themselves from detection, and can be very hard to remove as soon as they have been installed on a system.  https://westpennjournal.com/?p=381 They are often utilized to give an opponent complete control of a victim's maker, permitting them to spy on the user, or perhaps take control of the maker from another location.

Another sophisticated type of spyware is understood as a botnet. They can also be utilized to spy on users, or to take sensitive data.

Spyware is ending up being increasingly sophisticated, and intelligence firms are constantly progressing their tools and strategies to stay up to date with the latest dangers.