How to Keep Your Data Safe and Private

Picture this: You’re at CES 2026, the big tech show in Las Vegas that just wrapped up today, surrounded by shiny new gadgets like smart rings that track your sleep and hormones, or scales that check your heart health with a quick step-on. Sounds amazing, right? Devices from companies like Oura, Mira, and Withings are using artificial intelligence (AI) to give you personalized tips on everything from your menstrual cycle to your daily energy levels. But if you’re like many folks I hear from on X, you’re thinking: “What about my privacy? Is this AI spying on me or sharing my health secrets?”

You’re not alone. As a writer who’s followed these trends from a cybersecurity perspective, I’ve seen how these wearables collect super-personal data-like your heart rate or even biomarkers from urine tests-and use AI to make sense of it. The good news? There are simple ways to understand and protect yourself. Today, let’s break down the privacy and security worries from CES, explain them in everyday terms, and share tips to make smarter choices. No tech degree required-just a bit of curiosity.

First, What’s the Big Deal with Privacy in Wearables?

Imagine your fitness tracker as a tiny diary that logs your body’s secrets 24/7. At CES, we saw AI making these diaries smarter: It analyzes your data to spot patterns, like warning you about irregular heartbeats or fertility windows. But here’s the catch-unlike doctor visits protected by laws like HIPAA, most consumer gadgets aren’t. That means companies could potentially share or sell your info without your okay.

Common worries I heard at the show:

• Data Leaks: Hackers could steal your health stats, leading to identity theft or embarrassment.
• Biases in AI: If the AI was trained on data from mostly one group (say, young men), it might give wrong advice to others, like women or older folks. This is called “bias,” and it can make the device unfair or inaccurate.
• Hallucinations: No, not the trippy kind-AI sometimes “makes up” facts, like inventing a health alert that isn’t real. In wearables, this could scare you unnecessarily or miss real issues.

Experts at CES, like those from the Electronic Frontier Foundation, stressed that without strong rules, your data could end up training more AI or being sold to advertisers. Oura’s boss even jumped on X to calm fears, saying they don’t share menstrual data. But trust is earned, not assumed.

Simple Security Principles Everyone Should Know

Think of security like locking your front door-basic steps go a long way. Here’s how to apply them to your wearable:

1. Know What Data Is Collected: Before buying, check the app or website for a “privacy policy.” It’s like reading the ingredients on food-look for what they track (e.g., location, heart data) and who they share it with. Tip: If it’s a wall of legal jargon, use a free online tool or app to summarize it.
2. Control Your Sharing: Many devices let you opt out of data sharing in settings. Turn off “cloud syncing” if you don’t need it-keep data on the device itself to reduce risks.
3. Watch for Red Flags: Avoid gadgets that require constant internet or link to shady apps. At CES, some wearables boasted “on-device AI,” meaning processing happens locally, not in some far-off server. That’s safer!
4. Update Regularly: Just like your phone, wearables get software updates to fix bugs and security holes. Set them to auto-update.

These principles come from big guidelines that companies use behind the scenes. Let’s demystify a few to show how they protect you.

How Big Standards Keep You Safe (Without the Jargon)

Tech giants don’t make this stuff up-they follow frameworks like recipes for safe AI. Here’s what they mean for you:

• NIST’s AI Risk Management Framework (Like a Safety Checklist): From the U.S. government, this helps companies spot risks early. For wearables, it means testing for biases (so your device works for everyone) and hallucinations (ensuring advice is reliable). As a consumer, look for brands that mention “NIST-compliant” testing-it shows they’ve checked their AI homework.
• ISO 42001 (A Rulebook for AI Manners): This international standard is like a code of conduct for AI. It requires companies to assess impacts, like how your data might affect privacy, and fix issues. If a wearable maker is “ISO 42001 certified,” it’s a sign they’ve got ethics in check-ask about it in reviews or on their site.
• Common Criteria Protection Profiles (Tech’s Security Badge): Think of this as a report card for device safety. It rates how well gadgets protect against threats using Evaluation Assurance Levels (EAL), from basic (EAL1) to more thorough (EAL4). For health tech, it could include checks for “data provenance” (tracking where your info comes from) or bias detection. Consumers benefit when companies use these to build “profiles” tailored to wearables-look for certified products to know your data is guarded.

At CES, these ideas popped up in talks on “trustworthy AI.” For example, if Mira’s hormone tracker follows them, it might include features like easy data deletion or alerts for unusual sharing.

What You Can Do Right Now

Don’t feel overwhelmed-start small:

• Research before buying: Search “privacy review [device name]” on sites like Reddit or Consumer Reports.
• Use strong passwords and two-factor authentication for linked apps.
• If something feels off (like weird data requests), contact the company or report to the FTC.
• Support brands pushing for better standards-vote with your wallet!

CES 2026 showed us the future of health tech is bright, but only if we prioritize privacy. By understanding these basics, you’re not just a user-you’re an informed guardian of your own data. Got questions? Hit me up on X @James_K_Bishop.

This article has been adapted from a post at Stage Four Security’s blog.