A: Hello there!
Closely has a warm-up mode mimicking human behavior, dedicated proxies for each user, adherence to LinkedIn limits (limited number of messages/day), working hours (when you can choose the hours when messages will be sent, so they are sent during the working hours of your leads if they are in another timezone). Also if we catch a warning from LinekdIn we automatically stop all the activity from that account. Besides that, we regularly release updates which help minimise the risk with LinkedIn, and we always provide recommendations and precautions you can adhere to to make sure your account won't get restricted.