How to Back Up Your Mac to Multiple Time Machine Disks

Time Machine is a useful feature in OS X that lets you back up your Mac to an external hard drive, or to a network drive. It works automatically, every hour, backing up your Mac so you don’t have to think about it.

But sometimes Time Machine can go wrong, and your backups can get corrupted. To guard against this, it’s a good idea to back up to two different disks. These disks can both be connected to your Mac, or can both be network volumes, or you can use one of each, as I do.

To add another disk to Time Machine, open the Time Machine pane of System Preferences. Click Select Disk, and choose the second disk you want to use. When you do this, you’ll see a dialog asking if you want to replace the existing disk or use both. Click Use Both to tell Time Machine that you want to use the second disk along with the first.

When you do this, Time Machine alternates which disk it uses each time it runs a backup. In the Time Machine preference pane, you’ll see something like this:

Time machine two disks

The top disk, with the green icon, is a local hard drive; the bottom disk is a network drive. In the above screenshot, I’ve just started a new backup to a network drive, and, as you can imagine, it’s going to take quite a long time to send all that data over the network.

Since you really do want hourly backups – at least if you’re working on important files – you might want to stop the backup every now and then. Click the x to do this. When you stop the backup to the network drive, Time Machine will pick up in an hour, sending the backup to the other drive (in this case, the local hard drive). An hour later, it will continue the backup to the network drive. You can also click the Time Machine icon in the menu bar, if it’s visible, and choose Backup Now to restart the network backup.

6 Digits Are Better Than 4! iOS 9 to Boost Passcode Security | The Mac Security Blog

And although there were plenty of new features announced for the upcoming upgrade to OS X — dubbed El Capitan — perhaps the security news which will impact the most iPhone and iPad users is that Apple will be beefing up security on iDevices running iOS 9, by requiring users to upgrade from a 4-digit passcode to one containing 6 digits.

Two extra digits. Can that really add a whole lot more security?

Well, actually yes.

You see, a six digit passcode has one million possible combinations instead of 10,000.

Graham Cluley, writing on the Mac Security Blog, explains why a six-digit passcode is good, but an alphanumeric passcode is even better.

This is only available on a device with a Touch ID. Presumably, not having a Touch ID means you’ll be typing your PIN a lot more often, so they didn’t include the feature for older devices.

Source: 6 Digits Are Better Than 4! iOS 9 to Boost Passcode Security | The Mac Security Blog

Apple Explains How to Remove Adware From Your Mac

For a long time, Apple shied away from discussing any types of malware: viruses, trojan horses, even adware. This latter form of malware is also called ad-injection software, and, as Apple says, “come from third-party download sites.” This can result in annoying ads popping up on your Mac, or being inserted into web pages. Again, quoting Apple:

“If your Mac has ad-injection software installed, you might see pop-up windows, ads, and graphics while surfing the web, even if “Block pop-up windows” is selected in Safari preferences. Ad-injection software might also change your homepage and preferred search engine.”

Apple has created a technical document, Remove unwanted adware that displays pop-up ads and graphics on your Mac, explaining how to get rid of these annoyances. But it’s not that simple. You need to check a lot of system folders for obscure files, such as com.genieo.completer.update.plist, com.VSearch.bulk.installer, or com.genieoinnovation.macextension.client.plist. And some of the file names may vary, so Apple explains how to look for files that may contain any of a number of different words.

This is all quite disturbing, and highlights the risks of installing software from many third-party websites. But it’s not just these sites that install crap like this; Oracle recently added adware to its OS X Java installer.

So what should you do? Most commercial antivirus software will remove adware, but it’s best to have a look in the folders that Apple mentions in its document. I actually check those folders from time to time, because software that I’ve tried out can leave files behind which may launch processes that I don’t need to have running. It’ll take a few minutes, but if you are seeing unwanted ads on your Mac, you should definitely do it.

OS X’s Keychain Password Request Dialog Does Not Inspire Trust

I use the OS X Keychain, but I have the password for my keychain set to a different one than my login password. As such, when I start up one of my Macs, I see a dialog asking me to enter the password to unlock my keychain.

But I’ve often felt that this dialog is not very clear, and does not inspire trust. It mentions one of a number of different system services, none of which the average user has ever heard of. Here’s the dialog I saw after I booted my MacBook Pro today:

Keychain password request

What is CallHistoryPluginHelper? Even I don’t know. Sometimes I see different services requesting the password, such as accountsd, or some other “d” (for daemon, or background process). I don’t know why today I saw a different process ask for the password.

The problem with this is that the dialog does not inspire trust. How do I know that it is really the system level keychain that is asking for this password? Couldn’t a third-party app toss up a similar dialog, and get me to enter my keychain password?

When it’s the Keychain Access app itself asking for the password, this dialog is different, but not by much:

Keychain app password request

Or if a different app requests access to the keychain, that app’s icon displays in the dialog:

Mail keychain request

But just after I saw the above dialog (I locked my keychain to get Mail to ask for it) I also saw this:

Keychain request

I don’t think that com.apple.internetaccounts.xpc is a very user-friendly name.

Apple should think about changing this dialog to make it more understandable. It’s quite an important dialog: if you do give away you keychain password to some random app, you can give away the keys to all your online accounts.

Beware Dropbox Shared File Phishing Emails

Every now and then, I get a phishing email that’s well enough crafted that it’s worth highlighting. Yesterday, I got one purporting to be from Dropbox, alerting me to a file shared by “David.” Well, I know a few Davids, so I wondered who it could be from. But then I used the standard method of checking these emails: I hovered my cursor over the button in the email to see what the link was behind it.

Dropbox phishing

As you can see above, the link went to a server in Denmark (I’ve blurred the name of the server), but the link also has http://www.dropbox.com in it, trying to trip up users who look at links.

So heed the warning: be very careful about clicking links in emails. This one probably led to a bogus Dropbox login page (the page had been removed when I clicked the link to check it), which would give up your Dropbox credentials, and potentially provide access to a lot of personal files.

How To: Save Multiple iOS Device Backups in iTunes

You probably know that iTunes can back up your iOS device when you sync it. You can choose to have your device backed up to iCloud or to your computer.

Itunes backups

You can also manually back up your device; just click Back Up Now.

iTunes’ preferences shows you the backups available for your devices:

Itunes backups prefs

As you can see above, I’ve got two backups for my iPhone, Sugaree: one from this morning, at 8:55 am, and another from yesterday afternoon. iTunes saves one backup from each device – as you can see for the other devices listed in the window – but you can force it to “archive” a backup; when you do this, you’ll see the device name and the date and time of the archive, as in the last backup you see in the above screenshot.

To do this, right-click on a backup and choose Archive. iTunes quickly renames the backup, and saves it. You can do this as often as you wish, with the understand that these backups do take up a bit of space on your computer, depending on the type of content on your device. (My backups take up from 500 MB to about 1 GB, currently.)

If you have too many backups, you can delete some of them. Just right-click on a backup and choose Delete.

iTunes used to make these archived backups whenever you clicked Back Up Now; whenever you made a manual backup. Now you must choose to archive a backup yourself in the Devices preferences.

If you ever have serious problems on your iOS device, you can restore a backup, by connecting the device, and then clicking the Restore Backup button.

Phishing Dangers in Business and How to Avoid Getting Hooked

Gone are the days when malware simply rendered a computer useless or deleted files. Instead of creating malware to show off, hackers are now in it for the money. Because of this, most malware these days are designed to collect personal information, such as user names and passwords. Cyber-criminals leverage this information to hack accounts, such as email, Twitter and Facebook accounts, to spam your friends.

But the real jackpot is when hackers can trick you into giving up your banking information or credit card numbers. When that happens, they can drain your money, at least until you block the accounts.

The main way online thieves get these credentials is through “phishing,” or sending out emails that look exactly like official emails from your bank, credit card company, PayPal, Amazon or other online companies or services.

Falling for these scams can be detrimental to individuals, but they are even more harmful to businesses. If one of your employees gets fooled by phishing and inadvertently gives up the credentials for your company’s accounts, the results could be disastrous. Here’s how to detect phishing emails and make sure that you don’t get hooked.

Read the rest of the article at The Mac Security Blog.

Control What Information Apps Can Access on Your Children’s iPhone or iPad

I recently explained how to enable and set up Restrictions on an iOS device, to ensure that your children don’t have free reign on their iPhone or iPad. If you don’t turn on Restrictions, however, you might still want to help your children ensure that their privacy is respected. You can control what information and features certain apps can access on an iPhone, iPad or iPod touch. You might want to do it for your kids’ devices, and you also might want to do it for your own.

When you launch a new app that wants to access any personal information or hardware features (such as location services, the camera, and the microphone), you’ll see a dialog asking you to allow the app to access these. You can refuse or grant access, and you can always change these settings later. Here’s how to check and adjust these settings.

Read the rest of the article on The Mac Security Blog.

DiskWarrior 5 Review: The Essential Tool for Maintaining and Repairing Disk Problems

I’ve said it countless times: it’s not a question of if you will lose data, but when. Media, such as hard drives, eventually fails. Or you can make the kind of mistake that results in deleted folders or erased disks. And files can simply get corrupted. There are two things you need to do to ensure you don’t lose data: back up your files regularly, and use software to diagnose and correct problems before they become serious.

Since 1998, Alsoft’s DiskWarrior has been the go-to tool for fixing disk corruption on Macs. It’s been eight years since the last update to DiskWarrior. At the time, I reviewed DiskWarrior 4 and gave it the highest rating, five mice. It has saved my data, and fixed hard drive issues, many times over the years.

DiskWarrior does one thing, and does it well: it optimizes and repairs disk directories, which contain the information that tells your Mac where files are stored on the disks attached to it. If directories become corrupted, you can lose files. While your data may still be on a disk, the Mac is no longer capable of finding it. DiskWarrior works both as preventive medicine–to fix errors before they become serious–and to correct more serious errors and help recover files when things get really bad.

Read the rest of my review on Macworld.

iWant: Time Machine for iOS

I wrote yesterday how I lost data stored in iCloud, and had to get geeky to retrieve it. This shouldn’t happen. Ever. With Dropbox, for example, if you have two files with the same name, Dropbox saves both of them, showing, in the file names, that there is a conflict. And back in the days of pre-iCloud syncing, Apple showed you when there were conflicts and let you resolve them. But now, iCloud, in an attempt to be as transparent as possible, has eliminated such features.

Data is important; data integrity is essential. There is simply no situation where losing data is acceptable. Yet, for many people who use iCloud, this is the case.

The data loss I described is not uncommon. I’ve heard from lots of people who’ve had similar problems with Apple’s app and with third-party apps. The best Apple can do is tell you how to find missing information in iCloud after restoring an iOS device; they talk about apps, media, messages, but not data that has been lost. About two years ago, a number of app developers spoke out about this, and some app developers have given up on iCloud because of its lack of reliability.

iOS can back up to iCloud automatically. But this isn’t a real backup; it only stores some settings, but not most data. It stores pointers to apps and purchased content, but not content that you’ve synced to the device that Apple doesn’t sell. It’s not a backup, it’s not even a clone; it’s a selective backup of what Apple is concerned about. Apple’s logic is probably that iCloud will still have your app data: your contacts, calendars, notes and more. But as I, and many others have seen, iCloud can lose data. Also, you may have apps that store data locally; that don’t sync to the cloud, that don’t store files on Dropbox. In that case, it’s very hard to recover lost data.

Apple created Time Machine for the Mac so users would be protected. It’s still users’ responsibility to turn it on, and to purchase an external hard drive for the backups, but it’s not Apple’s fault any more if users don’t back up their data.

Apple needs to create Time Machine for iOS. This would back up what is backed up now, but also all the data that Apple’s apps and third-party apps store. You should be able to go back and see previous versions of this data and restore it, as you can with Time Machine.

There is no excuse for iCloud losing data. Apple needs to create a safety net so this never happens.