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What are CAPTCHAs and how do they work?

CAPTCHAs, or Completely Automated Public Turing tests to tell Computers and Humans Apart, are a type of challenge-response test used by websites to verify that visitors are human users. By displaying a series of images or other content, CAPTCHAs attempt to distinguish between human and machine-generated responses.

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Protecting yourself online: Tips and best practices

Here are some expert tips to help you stay safe online:

• Always use strong passwords and keep them confidential.
• Be cautious when clicking on links or downloading attachments from unknown sources.
• Use a reputable antivirus program and keep your software up-to-date.
• Cipher your online communications using a secure protocol, such as HTTPS.