From what I know from my own experience, user accounts can be changed, although employees do not. Traffic increases, file changes may appear, and performance will decrease. For example, the Internet connection works worse. They tried to hack our team several times, unload information, view our logs. I am very glad that we contacted the Under Defense Service professionals in time https://underdefense.com/data-breach-prevention-how-to-improve-cybersecurity/ , who helped quickly repel such an attack.
