According to Wu, the security agency Dilation Effect recommends that users restart their phones once a week to prevent the phone from being attacked and implanted with Trojans during operation. If the Trojan wants to remain after the phone is restarted, the hacker must master the secure boot vulnerability of the phone system, or re-run the exploit code. If the attacker re-runs the exploit, the victim may discover it. In addition, the agency also recommends that iPhone users turn off the iMessage function forever.
