eSIMs are also more secure than their physical counterparts, for the reasons we’ll set out below—but that doesn’t mean they’re hack-proof. Whether you’ve already switched to one or are thinking about it, here’s what you need to know about eSIM security. You can often manage all your eSIM settings inside the companion app provided by your carrier or eSIM company. Be wary of phishing attempts, for example, and think twice about following links unless you’re absolutely sure they’re genuine. Any account you have with a carrier or an eSIM provider can be hacked into if someone else gains access to your login credentials.