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Introduction

In the rapidly evolving landscape of cybersecurity, subdomain takeover has emerged as a significant threat. A notable example is the 2016 Uber breach, where an unclaimed subdomain led to the exposure of personal data of 57 million drivers and riders. While it may seem like a technical issue best left to IT departments, the potential consequences of subdomain takeover extend far beyond technical disruptions. For Risk Management Officers, understanding this threat and the associated costs of ignoring it is crucial.

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Introduction

The Domain Name System (DNS) is the phonebook of the internet, translating human-friendly domain names into IP addresses that computers use to communicate. However, misconfigurations in DNS records can lead to serious cybersecurity threats, such as subdomain takeover. This article delves into the crucial role of DNS records in subdomain takeover and how to secure them.

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Introduction

In the realm of cybersecurity, learning from past incidents is crucial for preventing future threats. One such threat that has impacted several organizations is subdomain takeover. As we’ve discussed in previous articles, subdomain takeover occurs due to misconfigurations in DNS records, leading to potential data breaches and reputational damage. This article explores notable cases of subdomain takeover and the lessons we can learn from them.

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Introduction

In the vast world of the internet, domains and subdomains form the backbone of our online identities. However, these digital addresses can be vulnerable to various forms of cyberattacks, one of which is subdomain takeover. This article aims to demystify the concept of subdomain takeover, explore its potential risks, and provide strategies for prevention.

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