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Why HTTP is not secure

URL bar shows site not secure. Should we visit HTTP sites ?

 
http-not-secure

HTTP is not secure primarily because it lacks encryption. When data is transmitted using HTTP, it is sent in plain text format, which means it can be easily intercepted and read by attackers.

Here are some reasons why HTTP is not secure:

  1. Lack of Encryption: HTTP does not encrypt data during transmission. This makes it vulnerable to interception by malicious individuals or eavesdroppers who can easily read and access the information being sent between the user's browser and the web server. This includes sensitive data such as login credentials, personal information, or financial details.
  2. Data Tampering: Since data is transmitted in plain text, attackers can modify or tamper with the data during transmission without the user or the server being aware of it. This can lead to various security issues, such as unauthorized changes to web pages, injection of malicious content, or manipulation of form data.
  3. Man-in-the-Middle Attacks: In a man-in-the-middle attack, an attacker intercepts the communication between the user and the web server, masquerading as the server to the user and as the user to the server. Without encryption, attackers can easily capture and modify the data exchanged between the user and the server, potentially gaining unauthorized access to sensitive information.
  4. Privacy Concerns: HTTP does not provide privacy for users as their browsing activities and the data they transmit can be easily monitored and tracked. This can lead to privacy breaches, unauthorized data collection, and targeted advertising.
To address these security concerns, HTTPS was developed. It incorporates encryption protocols such as SSL or TLS to establish a secure and encrypted connection between the user's browser and the web server, ensuring that data is protected from interception and tampering.
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