How Do Websites Use My Data? (Best Practices for Data Sharing)

Almost every website and app you use collects information about you. Some of it helps the site work. Some of it is used for advertising, and some is shared or sold to companies you’ve never heard of. Understanding what’s collected is the first step to sharing less.

What websites collect

• What you give them: your name, email address, phone number and payment details when you sign up or buy something.
• What they observe: the pages you visit, what you click, how long you stay, and your device and browser.
• Where you are: a rough location from your internet connection, or a precise one if you allow it.
• What others share: advertisers and data brokers often combine information from many sources into a profile.

How it’s used

Much of this is routine: keeping you signed in, remembering your cart, and fixing problems. But it’s also used to target ads, and in some cases it’s shared with partners. A website’s privacy policy should explain what it collects and who it shares information with.

Cookies, briefly

Cookies are small files a website stores in your browser. Some are needed for the site to work. Others, often from third parties, track you across different websites. When a cookie banner appears, choosing “reject” or “necessary only” limits the tracking without breaking most sites.

Best practices for sharing less

1. Share only what’s required. If a field isn’t marked required, skip it.
2. Review app permissions. Does a flashlight app really need your contacts or location?
3. Use strong, unique passwords and multi-factor authentication. Less data shared means less to lose, but protecting your accounts matters most.
4. Be careful with “Sign in with” buttons. They’re convenient, but they can share profile information between services.
5. Check privacy settings on social media, browsers and phones once or twice a year.
6. Think before taking quizzes and surveys that ask for personal details. They’re often designed to collect data.

At work, the stakes are higher

When employees use websites and apps for work, it’s not just their own data at risk. Customer information, company documents and login details can end up in places they shouldn’t. Businesses should:

• approve the tools staff can use for work
• use business accounts rather than personal ones
• train staff to recognize risky requests for information
• write down how customer data may be shared, and with whom

How ITVantix helps

Security awareness training is part of MAXX Care, and MAXX Compliance adds the written policies that set clear rules for how your business handles data. For one short tip a week, sign up for the free Cyber Security Tip of the Week.