data breaches

Data breaches in 2026: What to know and do

If you haven’t received a data breach notification yet, you’re one of the lucky ones. In 2025, over 3,300 organizations and services were caught in a data breach, exposing a quarter billion personal records to criminal activity. That’s a 79% jump in just five years, and 2026 isn’t looking any better.

Data breaches are now so common that your data has probably already been stolen. The real question is whether criminals have used it yet.

Data breaches aren’t an abstract tech problem happening to other people; they’re happening to all of us, whether we know it or not. Since 2004, in developed regions, the average person’s personal information has been compromised in at least seven different breaches. And most people have no idea which ones, what was taken, or what to do about it.

Some quick stats:

  • Since 2004, over 23.4 billion accounts have been breached in the US alone.
  • A single U.S. data broker breach in 2024 (National Public Data) exposed 2.9 billion records, affecting almost every American.
  • More than 61% of Americans have received at least one data breach notification in the past two years.

The good news? You can take practical steps right now to protect yourself, even if your data is already out there.

What is a data breach?

A data breach happens when someone who shouldn’t have access to a company’s database gets in and steals the information stored there. That information could be:

  • Your name, address, and phone number
  • Email addresses and passwords
  • Social security numbers or driver’s license numbers
  • Credit card numbers and banking information
  • Medical records and health insurance details
  • Anything else you’ve ever typed into a form online.

Data breaches can happen in four different ways:

  1. Someone inside an organization accidentally accesses and views information. 

  2. Someone inside an organization purposefully accesses or shares information with malicious intent. 

  3. Devices containing sensitive information are stolen or lost.

  4. Criminals exploit weaknesses in networks or individual behavior using things like phishing emails, brute force attacks, and malware, usually for profit, reputation or disruption, or all three.

Types of data breaches

  • Hacking and cyberattacks
  • Insider threats (employees stealing data)
  • Accidental exposure (misconfigured databases)
  • Third-party breaches (vendors and partners)
  • Ransomware attacks
  • Physical theft (stolen laptops, hard drives)

Companies often don’t even know they’ve been breached for months. By the time you get that notification email, criminals have already had your data for 200+ days on average. They’ve had time to sell it, use it, or plan exactly how to exploit it.

Why do data breaches keep happening?

Here’s why the problem keeps escalating:

More data, more risk: We store almost everything online, from banking, shopping, health, and personal details, vastly increasing what’s available to steal.

Outdated systems: Many organizations still rely on old software or weak security practices that hackers easily exploit.

Rising sophistication of cybercriminals: Attackers now use automation, artificial intelligence, and large-scale ransomware operations to strike more effectively.

Human error: Simple mistakes like weak passwords, phishing clicks, or misconfigured databases continue to expose sensitive data.

Ongoing data circulation: Once stolen, information spreads on the dark web, fueling further scams, fraud, and new breaches.

Strong financial incentive: Stolen data can be sold or used for identity theft, making data breaches a highly profitable business for criminals.

What happens when your data gets stolen?

After your information is stolen in a breach, you potentially face:

Immediate threats:

  • Account takeovers: Criminals use your email and password to log into your accounts (if you reuse passwords, they try those credentials everywhere).
  • Phishing attacks: You start getting targeted scam emails because criminals know your real name, email, and possibly even details about what services you use.
  • Spam calls and texts: Your phone number gets sold to scammers and telemarketers.

Medium-term threats:

  • Credit card fraud: Someone uses your stolen card info to make purchases.
  • Unauthorized charges: Strange transactions appear on your bank statement.
  • Email compromise: Someone takes over your email and uses it to scam your contacts.

Long-term threats:

  • Identity theft: Criminals open credit cards, take out loans, file fake tax returns, or even commit crimes using your identity.
  • Medical identity theft: Someone uses your health insurance to get treatment, leaving you with the bills and messed-up medical records.
  • Synthetic identity theft: Criminals combine your real info with fake details to create new identities.

The scariest part? Your stolen data doesn’t expire. Just because a breach happened three years ago doesn’t mean you’re safe now. That information is still out there, still being sold, still usable.

How do you know if you've been caught in a data breach?

The affected organization should advise you of the breach event, but many people find out second-hand from the media for data breaches involving well-known companies. Some online services allow you to track your digital footprint so you will be notified when your personal data is part of data breach. Check out MySudo Reclaim which does just that.

Here are 15 signs you’ve been caught in a data breach: 

  1. You get a ransomware message.

  2. You get a fake antivirus message.

  3. You have unwanted browser toolbars.

  4. Your internet searches are redirected.

  5. You see frequent, random popups.

  6. Your friends receive social media invitations from you that you didn’t send.

  7. Your online password isn’t working.

  8. You see unexpected software installs.

  9. Your mouse moves between programs and makes selections.

  10. Anti-malware, Task Manager or Registry Editor is disabled.

  11. Your online account is missing money.

  12. Someone notifies you to say you’ve been hacked. 

  13. Confidential data has been leaked.

  14. Your credentials are in a password dump (also called credential dumping, where malicious actors extract authentication credentials (usernames, plaintext passwords, or password hashes) from a compromised system’s memory or storage often before more extensive network infiltration).

  15. You see strange network traffic patterns.

Who's most at risk of data breach?

Artificial intelligence (AI) is supercharging data breaches in ways that should terrify you. Hackers are now using AI to write incredibly convincing phishing emails that sound exactly like your boss, your bank, or your favorite company, personalized to you based on your stolen data. AI can crack passwords exponentially faster than old methods, test millions of login combinations per second, and automatically scan for security vulnerabilities that humans would take months to find.

Deepfake technology means criminals can impersonate someone’s voice or face on a video call to trick employees into handing over access to sensitive systems. What used to require a team of skilled hackers can now be done by one person with AI tools, at massive scale, targeting thousands of companies simultaneously. And here’s the kicker: AI-powered attacks are getting so sophisticated that even security experts struggle to tell them apart from legitimate activity until it’s too late. The tools that make our lives easier are making criminals’ lives easier too, and they’re getting a head start.

Who's most at risk of data breach?

Data breaches are a universal threat, but certain industries, organizations, and individuals face significantly higher risks due to the value of the data they handle or their susceptibility to attack. Based on 2025 data, healthcare and finance were the biggest targets, but other industries including manufacturing, professional services, energy, transport, retail, and government are also at high risk.

Senior citizens, small business owners, kids and teenagers, remote workers, and high net worth individuals are the demographics most targeted in data breaches.  

Tools to check your exposure to a data breach

How to make yourself a much harder target for a data breach

The American Cybersecurity and Infrastructure Security Agency (CISA) recommends 4 actions:

  1. Turn on multi-factor authentication (MFA).

  2. Update your software and turn on automatic updates.

  3. Think before you click. More than 90% of successful cyber-attacks start with a phishing email.

  4. Use strong passwords, and a password manager to generate and store unique passwords. 

Watch CISA’s recap video: Here are four things you can do to keep yourself cyber safe

Protect your phone number and email

Your phone number and email are the keys to your digital identity. If someone controls those, they can reset passwords and take over your accounts.

For your email:

  • Use a strong, unique password.
  • Enable 2FA.
  • Consider using an email alias service for signups. Check out MySudo email which is separate from your personal email and end-to-end encrypted between app users.

For your phone number:

  • Don’t give your real number to every website and app. Use MySudo secondary phone numbers which are separate from your personal phone line and offer end-to-end encrypted calling and messaging in-network and standard calling and messaging out of network. See how MySudo stacks up against WhatsApp, Signal and Burner.
  • Contact your carrier about adding a PIN to prevent SIM-swapping attacks on your main phone.