Bots can be both good and bad, depending on who is using them and what their intent is:
Good bots are used for a range of purposes that support users and provide invaluable information. The vast majority of bots scan the Internet for content, such as search engine bots, which scan webpages to index content. Other bots, such as customer service bots, engage in chats with users providing greater self-service support capabilities.
Bad bots are typically controlled by cyberattackers who wish to do harm or steal intellectual property. Bad bots might be used to break into user accounts, deliver spam, or conduct other malicious activities.