But it may not be the only Silicon Valley giant that's guilty of mismanaging user data.
Experts now say Google may be at fault, too.
In a blog post earlier this week, Facebook admitted it collects call logs and messaging histories from some Android users who installed its Messenger app or Facebook Lite, a stripped-down version of its core app.
Users had to opt in to the feature in order for the information to be collected.
Once they opted in, they could also opt out by changing their app's settings.
Facebook maintained that it doesn't sell the data, which includes phone contacts and text history, or collect the content of your data.
However, the blog post didn't delve into why the controversial data collection was restricted to Android users only.
iPhone owners weren't subject to having their phone calls and texts logged by Facebook's apps because Apple has tighter security restrictions.
'Apple's fundamental approach is to collect the minimum amount of information to keep the service running, and keep customers in control of the information,' Rich Mogull, CEO Of the security firm Securosis, told CBS.
Meanwhile, Google's Android subsidiary has comparatively lax app permissions for developers.
Many Android apps would request access to a user's address book to upload contact information, without telling them that that also meant recording call logs and text messages.
In 2012, Android began requiring app developers to disclose that providing contact information would also entail collecting call log and messaging data.
That said, many of these apps required users to agree to those permissions because rejecting access meant the apps wouldn't work.
It was until 2015, when Android released version 6.0, or 'Marshmallow', that the firm split up those permissions categories.
That meant users could agree to share contacts but reject access to call logs and messages.
Facebook started collecting that information during the same year.
While Android did take steps to strengthen its app permissions in the latest version of Android, it still doesn't seem to have resolved the issue.
That's because most Android users aren't using the latest version of the software.
When Apple releases a new version of its mobile operating system, the iOS update gets pushed out to all devices automatically because the firm owns both the software and hardware.
By comparison, Google can't do this because not all Android devices are manufactured by the company.
There are nearly 20,000 Android phone models out in the world, according to CBS.
Roughly 65% of iPhone users are running the latest iOS software, while shockingly, less than 1% of Android devices are using the latest software, Android 8.0, or 'Oreo'.
A little over half of all Android users are running the two previous versions of the software, which let them reject sharing of communication logs, CBS noted.
Questions still remain as to why Google didn't require app developers to disclose they were collecting call logs and messages in the first place.
A Google spokesperson told CBS that they couldn't say how many apps may have access to call logs or how many users' call logs had been transmitted to app developers.
The answer seems to be that Google, like Facebook, can attribute much of its value to the massive treasure trove of user data it oversees.
Also like Facebook, Google uses its vast collection of user data to serve up advertisements tailored to users' interests.
