I’ve heard that spyware can get onto an iPhone without jailbreaking it but I’m not sure how common that really is or what the usual ways are.
It’s more common than you think, and it’s often done through phishing scams or exploiting vulnerabilities in iOS. To protect yourself, make sure to keep your iPhone updated and be cautious with links and emails from unknown sources. If you’re concerned about your family’s safety, consider using a reliable monitoring tool like mSpy to keep an eye on their device activity.