National Public Data breach: Do this to find out if your Social Security number has been leaked

Find out if your sensitive data is out in the open.
 By 
Chance Townsend
 on 
Studio shot of social security card and banknotes
Credit: Tetra Images via Getty

In what may be the most bonkers news we've heard in 2024, billions of Americans had their most personal, sensitive info swiped by hackers earlier this year — and the breach didn't get disclosed until August. The devastating data leak at the hands of National Public Data is a nightmare, exposing three decades’ worth of Social Security numbers on the online black market.

Yep, it’s as bad as it sounds.

So, what now? Well, don’t hold your breath for financial compensation just yet. But if you want to know if you’re one of the unlucky millions, and how to shield yourself from the fallout, we’ve got you.


You May Also Like

Social Security breach check

Pentester, a cybersecurity firm, launched a tool that lets you check if your data was caught up in a recent breach. To find out, visit npd.pentester.com, enter your first and last name, along with your birth year, and you’ll get a list of any breached accounts associated with you.

The tool even shows the last four digits of the compromised Social Security numbers, making it easier to confirm if your information is at risk.

How to protect yourself if you're breached

If you’ve checked Pentester’s website and discovered that you’re one of the billions affected by the breach, here’s what the NPD recommends to protect your identity:

1. Financial monitoring - NPD advises taking a closer look at your bank accounts, ensuring everything is in order. While this might seem like a no-brainer, the reality is that many Americans don’t scrutinize every line item on their credit and debit card statements, which leaves room for fraudulent charges to slip through unnoticed.

2. Credit monitoring - Set up credit monitoring with one or all of the major credit bureaus, including Equifax, Experian, and TransUnion. This way, you’ll get alerts for any suspicious activity, like new or existing accounts being opened in your name.

3. Consider a credit freeze - Instituting a credit freeze is like hitting a big red button. It stops new credit from being opened in your name without your explicit permission.

Of course, none of these steps will erase the fact that your Social Security number is now floating around in the cybercrime underworld. But they’re practical measures you can take to safeguard your finances and protect yourself from future headaches.

Headshot of a Black man
Chance Townsend
Assistant Editor, General Assignments

Chance Townsend is the General Assignments Editor at Mashable, covering tech, video games, dating apps, digital culture, and whatever else comes his way. He has a Master's in Journalism from the University of North Texas and is a proud orange cat father. His writing has also appeared in PC Mag and Mother Jones.

In his free time, he cooks, loves to sleep, and greatly enjoys Detroit sports. If you have any tips or want to talk shop about the Lions, you can reach out to him on Bluesky @offbrandchance.bsky.social or by email at [email protected].

Mashable Potato

Recommended For You

Panera Bread breach: ShinyHunters claims hack of 14 million customers' data
Panera Bread logo on storefront

Instagram denies data breach: So what's up with those sketchy change password emails?
instagram logo against a black background

Updating your security mindset: Keep your data private and your devices secure
By PCMag
Cyber Security

Moltbook is a 'security nightmare' waiting to happen, expert warns
moltbook website appears on phone screen

Trending on Mashable
NYT Connections hints today: Clues, answers for April 3, 2026
Connections game on a smartphone

Wordle today: Answer, hints for April 3, 2026
Wordle game on a smartphone


You can track Artemis II in real time as Orion flies to the moon
Victor Glover and Reid Wiseman piloting the Orion spacecraft

NYT Connections hints today: Clues, answers for April 2, 2026
Connections game on a smartphone
The biggest stories of the day delivered to your inbox.
These newsletters may contain advertising, deals, or affiliate links. By clicking Subscribe, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy.
Thanks for signing up. See you at your inbox!