Tips & HacksHow to Securely Send Sensitive Information Over the Internet

How to Securely Send Sensitive Information Over the Internet

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In today's digital age, we routinely share vast information online, from social media posts to online banking details. However, regarding sensitive information, like social security numbers, financial documents, or confidential work documents, how to securely send sensitive information over the Internet becomes crucial. Unprotected data can fall into the wrong hands, leading to identity theft, financial loss, or even reputational damage.

This guide explores various methods to securely ensure your sensitive information reaches its intended recipient. By understanding the risks and implementing these best practices, you can significantly reduce the chances of data breaches and safeguard your privacy.

How to Securely Send Sensitive Information Over the Internet

1. Utilizing Encrypted Messengers

Many popular messaging apps now offer end-to-end encryption, which scrambles the content of your messages before they are sent.

This encryption ensures that only the sender and recipient can read the messages, even if a third party intercepts them.

Here are some popular encrypted messaging apps:

  • Signal: Widely regarded for its strong focus on privacy and security, Signal offers end-to-end encryption for messages, calls, and file sharing.
  • WhatsApp: While recently under scrutiny regarding data collection practices, WhatsApp offers end-to-end encryption for messages by default.
  • Telegram: Provides end-to-end encryption for chats designated explicitly as “Secret Chats.” Standard Telegram chats offer cloud-based storage, which might be less secure for susceptible information.

Important Considerations:

  • End-to-end Encryption: Ensure the chosen messaging app offers actual end-to-end encryption. This means the messages are encrypted on the sender's device and decrypted only on the recipient's device, without being accessible on any servers in between.
  • Recipient Compatibility: Verify that the recipient uses the same encrypted messaging app to ensure end-to-end encryption capabilities. Sending encrypted messages to someone using a non-encrypted platform negates the security benefits.

2. Secure File-Sending Services: Sharing Large or Encrypted Files

While encrypted messaging apps are great for text and small files, they might not be suitable for sending large documents or susceptible files requiring additional security measures. This is where secure file-sharing services come into play. These platforms offer features like:

  • Encryption at Rest and Transit: Files are encrypted both on the user's device and while transferred to the recipient, ensuring maximum protection.
  • Password Protection: An extra layer of security can be added by password-protecting the files before uploading them to the service.
  • Access Controls: Some services allow you to set expiration dates for file access or restrict downloads to specific recipients.

Here are some reputable, secure file-sharing services:

  • Citrix ShareFile: A popular business-oriented solution offering robust security features and access controls.
  • Mega: Provides a free plan with a generous storage limit and user-friendly interface.
  • Known for its strong focus on privacy and zero-knowledge encryption, where even the service provider cannot access your data.

Important Considerations:

  • Storage Limits: Many services offer free plans with limited storage space. Depending on your file-sharing needs, upgrading to a paid plan might be necessary.
  • Security Features: Compare the security features of different services, such as encryption protocols and access control options.
  • User Interface and Ease of Use: Choose a service with a user-friendly interface that simplifies the file-sharing process for both you and the recipient.

3. Secure Browsers: Guarding Your Information During Online Transactions

While most modern browsers offer basic security features, using a browser specifically designed with security in mind can provide an extra layer of protection when sending sensitive information over the Internet. Secure browsers often include features like:

  • Enhanced Phishing Protection: They can warn you about suspicious websites or emails that might be phishing attempts to steal your information.
  • Blocking Malicious Content: Secure browsers might actively block malicious websites or scripts that could compromise your data.
  • Sandboxing: This technology isolates websites you visit, preventing them from accessing other parts of your system or stealing data.

Here are some secure browsers to consider:

  • Tor Browser: Offers the highest level of anonymity by routing your traffic through the Tor network, ideal for situations requiring maximum privacy. However, it can be slower than traditional browsers.
  • Brave: Provides built-in ad blocking, tracking prevention, and robust security features while maintaining good performance.
  • Firefox Focus: A privacy-focused mobile browser from Mozilla that prioritizes user privacy and data protection.

Important Considerations:

  • Balance Between Security and Performance: Some secure browsers might have features that can impact browsing

    speed. Consider your priorities and choose a browser that balances security and performance well.

  • Browser Updates: Like any software, keeping your browser updated with the latest security patches is crucial to maintain optimal protection.

4. Utilizing One-Time Links: For Temporary File Sharing

One-time links offer a convenient and secure way to share sensitive files. These links are generated by file-sharing services and allow access to the file only once within a designated timeframe.

The file becomes inaccessible after the link expires or is used once, minimizing the risk of unauthorized access.

Here are some benefits of using one-time links:

  • Limited Access: One-time use prevents the link from being forwarded or shared further, restricting access to the intended recipient.
  • Password Protection: Many services allow adding password protection to one-time links for an extra layer of security.
  • Download Tracking: Some services offer download tracking, allowing you to see if and when the recipient has accessed the file.

Important Considerations:

  • File Size Limitations: Some services might limit the size of files you can share using one-time links.
  • Service Reliability: Choose a reputable file-sharing service with a good security and uptime track record.

5. Additional Methods for Enhanced Security

Here are some additional methods to consider when sending sensitive information over the Internet:

  • Public Wi-Fi Caution: Avoid sending sensitive information over public Wi-Fi networks. Public Wi-Fi is inherently insecure and can be easily intercepted by hackers. If you must use public Wi-Fi, consider using a VPN (Virtual Private Network) to encrypt your internet traffic.
  • Two-Factor Authentication (2FA): Enable 2FA on all accounts containing sensitive information. This adds an extra layer of security by requiring a second verification code and your password whenever you log in.
  • Strong Passwords: Creating strong, unique passwords for all your online accounts is crucial. Avoid using easily guessable passwords or the same password for multiple accounts. Password managers can help you generate and store strong passwords securely.
  • Be Wary of Email Attachments: Exercise caution when opening email attachments, especially from unknown senders. Malicious attachments can contain malware that can steal your information or compromise your system.


By understanding the risks and implementing these best practices, you can significantly reduce the chances of your sensitive information falling into the wrong hands.

Remember, securely sending sensitive information over the Internet requires a layered approach.

Combine the above methods with a healthy dose of caution and awareness to navigate the digital world and confidently protect your privacy.


About the Author:

Writer at SecureBlitz | + posts

Abraham Faisal is a professional content writer. He has a strong passion for online privacy, cybersecurity and blockchain and is an advocate for online privacy. He has been writing about these topics since 2018 and is a regular contributor to a number of publications. He has a degree in Computer Science and has in-depth knowledge of the ever-evolving world of digital security. In his free time, he likes to travel and explore new cultures.

Editor at SecureBlitz | Website | + posts

Christian Schmitz is a professional journalist and editor at He has a keen eye for the ever-changing cybersecurity industry and is passionate about spreading awareness of the industry's latest trends. Before joining SecureBlitz, Christian worked as a journalist for a local community newspaper in Nuremberg. Through his years of experience, Christian has developed a sharp eye for detail, an acute understanding of the cybersecurity industry, and an unwavering commitment to delivering accurate and up-to-date information.


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