Apple enhance the security of bind and infix thumb drive , printers , and memory card to ( or into ) the Thunderbolt , USB , and SD identity card port on M - serial Apple Si Macs in macOS , stating with Ventura . When anything is plugged or enter into one of those ports , you ’re asked to offer permission to proceed if it ’s never been see by the Mac before . If your Mac is locked , it must be unlocked before you’re able to uphold .

The intention is to prevent someone from inserting something that contain malicious firmware or for malicious purposes — like copy the contents of your driving — without explicit permission being grant when the computer is unsecured .

However , you might receive this prompting for a gadget , drive , or memory visiting card you ’re sure you had used with your Mac antecedently . That ’s because of a certificate footer : after three days , macOS may settle to prompt you again , under the presumption that if you are n’t using the connected matter endlessly , perhaps something has gone amiss with it in the meantime . Is it overkill ? I ’m trusted there ’s a reason for the three - mean solar day timeout that Apple knows and is n’t disclosing .

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You can control how macOS on an Apple silicon Mac allows or prompts accessories to connect.

you could ascertain how macOS on an Apple atomic number 14 Mac allows or command prompt appurtenance to connect .

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If you happen these alerts unnecessary and teasing — say , your computer is in your home and nobody but you and trusted kin members are ever near it — you may go to > scheme options > Privacy & Securityand set “ Allow accessories to plug in ” to Always or mechanically When Unlocked . Contrariwise , if you want the high degree of paranoia , set it to expect Every Time .

macOS accessory warning setting

You can control how macOS on an Apple silicon Mac allows or prompts accessories to connect.

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We ’ve pile up a list of the interrogative sentence we get enquire most oftentimes , along with reply and connectedness to column :   record our top-notch FAQ   to see if your question is cover . If not , we ’re always bet for new problems to work out ! e-mail yours tomac911@macworld.com , including screen capture as appropriate and whether you want your full name used . Not every interrogation will be answered , we do n’t respond to electronic mail , and we can not leave lineal troubleshooting advice .