"Security question about “update” needed when connected iphone to Mac: I connected my iPhone 13 to my mac to back it up before upgrading to a new phone, and it said an update was needed first. It didn’t say what kind of update. The phone icon showed, and something transferred for a few seconds, and then everything went normally. The iPhone and mac were both already up to date with iOS. Should I be concerned with malware or anything? It’s never done that before. Thanks!"
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Updating an iPhone:
A. Install a Cellular Update:
It might be prompting you for a Cellular update to install. So, go here for that. Update your carrier settings manually on your iPhone or iPad - Apple Support
B. Update the iOS Using a Computer:
Malware on an iPhone:
A. No Malware for iPhones:
The only way for an iPhone to be high jacked is if it has been jailbroken. And the only way to know that is has been jailbroken, is to just know it. So, who's the seller? If Apple, then no worries there.
B. Securing your iPhone:
Every-so-often, I'd say it'd be wise to set a passcode. On top of that, I recommend changing your passcode every-so-often, as someone might learn of it --particular someone you live with --and don't use your bank pin. Keep a copy of it stored in a location, incase you forget your passcode. As for keeping others from pestering you with scam calls and scam messages, Malwarebytes Mobile is what to use, as it is created by longterm users of these forums. Get it Here: Malwarebytes Mobile Security - App Store