---
title: "How to Understand Heartbleed Bug in Open SSL"
description: "The bug in OpenSSL causes us to steal data attackers from any system."
url: https://srinimf.com/2014/07/14/awareness-about-heartbleed-bug/
date: 2014-07-14
modified: 2026-10-10
author: "Srini"
image: https://i0.wp.com/srinimf.com/wp-content/uploads/2014/07/pexels-photo-5475758.jpeg?fit=1880%2C1253&ssl=1
categories: ["Big Data"]
tags: ["Heartbleed bug"]
type: post
lang: en
---

# How to Understand Heartbleed Bug in Open SSL

The Heartbleed bug allows anyone on the Internet [to read](https://srinimf.com/2013/12/27/informatica-interview-resources/) the memory of the systems protected by the vulnerable versions of the OpenSSL software.

Related[Do you Agree Open Chatgpt AI Will Take Our Jobs?](https://srinimf.com/2023/02/13/do-you-agree-open-chatgpt-ai-will-take-our-jobs/)

---

![Heartbleed](https://i0.wp.com/srinimf.com/wp-content/uploads/2014/07/download.jpg?resize=252%2C156)

This compromises the secret keys used to identify the service providers and to encrypt the traffic, the names, and passwords of the users, and the actual content.

This allows attackers to eavesdrop on communications, steal data directly from the services and users, and to impersonate services and users.

## Who Discovered it?

[Heartbleed](http://www.cnet.com/news/heartbleed-bug-what-you-need-to-know-faq/), discovered by a Google engineer, caused widespread panic and a[ furious round of server patching](http://www.cnet.com/how-to/which-sites-have-patched-the-heartbleed-bug/) by companies worldwide.

The security kink impacts OpenSSL, open-source software for encrypting information across the Web, and, if exploited, can leak account log-in details and passwords.

### How this bug is different

What made this bug different: its inherent nature within the [OpenSSL](https://en.wikipedia.org/wiki/OpenSSL) framework, which is used by thousands of websites, left huge numbers of servers on the Web exposed.

Even a decade from now, though, I still expect to find thousands of systems, including critical ones, still vulnerable.

A British Cabinet spokesman recommended that “People should take advice on changing passwords from the websites they use.

Most websites have corrected the bug and are best placed to advise what action if any, people need to take.

On the day of disclosure, the [Tor](http://en.wikipedia.org/wiki/Tor_%28anonymity_network%29) Project advised anyone seeking “strong anonymity or privacy on the Internet” to “stay away from the Internet entirely for the next few days while things settle. Checkout [The Heartbleed Bug – Old Bugs Die Hard](https://securityboulevard.com/2020/09/the-heartbleed-bug-old-bugs-die-hard/).

Related[GitHub Features & Settings Explained: The Ultimate GitHub Options Guide](https://srinimf.com/2025/12/28/github-features-settings-explained-the-ultimate-github-options-guide/)

Solution

- [How to treat the Bug](https://www.bankinfosecurity.com/how-to-treat-heartbleed-bug-a-6731)

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