If you have a PDF with confidential information that you want to share, you can set a password to restrict opening, printing, or editing. We have instructions for Preview and Adobe Acrobat, plus advice on ensuring your document stays secure.

If you have a PDF with confidential information that you want to share, you can set a password to restrict opening, printing, or editing. We have instructions for Preview and Adobe Acrobat, plus advice on ensuring your document stays secure.
Phishing isn’t limited to email and texts anymore—“voice phishing” or “vishing” was used recently in a major ransomware attack on MGM Resorts. The rise in such attacks means that requests over the phone will need much more verification.
Receiving a two-factor authentication code you didn’t request shows that your security is working, but it’s also an indication that someone may have your password and be trying to break into your account.
We’re seeing an uptick in scam emails and texts to new hires purporting to be from corporate executives. The best defense is awareness, so we recommend adding security training to your onboarding process.
High-value targets like activists, journalists, and government employees with access to sensitive information should consider enabling Lockdown Mode on their Apple devices to protect against hacking or spying by sophisticated digital attackers.
Did you know that a phishing website can send you a notification right on your Mac? Learn how this could happen and how to prevent it in your favorite Web browser.
Do you suffer from dueling password managers on your iPhone or iPad? If you’re using a third-party password manager, turn off password autofill for iCloud Passwords & Keychain and any other apps to avoid confusion.
If you receive unexpected password reset email messages from Facebook, don’t worry—but don’t click anything! Use them as encouragement to ensure your email and social media passwords are strong, unique, and protected with two-factor authentication.
In an effort to protect users from security vulnerabilities that are being actively exploited, Apple has introduced Rapid Security Responses, which are security updates that are quick to download, quick to install, and easily removed if necessary.
With new reports of iPhone theft victims being locked out of their iCloud accounts, it’s all the more important that you copy your iPhone photos to a Mac and then back up that Mac.
Dosent filter anything
I have tried all of them and still unable to send pictures messages to android users. Help please
I wish I would have stayed with High Sierra or Catalina. Big Sur doesn't work with Time Machine, Messages, Spotlight…
My updated my Mac with Big Sur and it is stuck and says it has less than a minute to…
This was extremely helpful and just what I was looking for! The Carbon Copy Cloner is still holding back my…