article thumbnail

MasterCard DNS Error Went Unnoticed for Years

Krebs on Security

A DNS lookup on the domain az.mastercard.com on Jan. MasterCard.com relies on five shared Domain Name System (DNS) servers at the Internet infrastructure provider Akamai [DNS acts as a kind of Internet phone book, by translating website names to numeric Internet addresses that are easier for computers to manage].

DNS 362
article thumbnail

New DNS Hijacking Attacks

Schneier on Security

DNS hijacking isn't new, but this seems to be an attack of uprecidented scale: Researchers at Cisco's Talos security division on Wednesday revealed that a hacker group it's calling Sea Turtle carried out a broad campaign of espionage via DNS hijacking, hitting 40 different organizations.

DNS 279
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

New DNS Spoofing Threat Puts Millions of Devices at Risk

eSecurity Planet

Security researchers have uncovered a critical vulnerability that could lead to DNS spoofing attacks in two popular C standard libraries that provide functions for common DNS operations. Understanding DNS Spoofing Attacks. For example, when you enter [link] the browser queries a DNS service to reach the matching servers.

DNS 132
article thumbnail

How to Secure DNS

eSecurity Planet

The domain name system (DNS) is basically a directory of addresses for the internet. Your browser uses DNS to find the IP for a specific service. For example, when you enter esecurityplanet.com, the browser queries a DNS service to reach the matching servers, but it’s also used when you send an email. DNS spoofing or poisoning.

DNS 137
article thumbnail

The Most Common DNS Security Risks in 2024 (And How to Mitigate Them)

Heimadal Security

DNS security risks are everywhere, and the stats show it too. A 2021 IDC survey of over 1,100 organizations across North America, Europe, and the Asia Pacific revealed that 87% had encountered DNS attacks.

DNS 111
article thumbnail

DNS-over-HTTP/3 in Android

Google Security

Posted by Matthew Maurer and Mike Yu, Android team To help keep Android users’ DNS queries private, Android supports encrypted DNS. In addition to existing support for DNS-over-TLS, Android now supports DNS-over-HTTP/3 which has a number of improvements over DNS-over-TLS. In Android 9.0,

DNS 142
article thumbnail

Name:Wreck DNS Bugs Put IoT Devices At Risk

Heimadal Security

Security experts from Forescout and JSOF have discovered a new set of DNS vulnerabilities that could impact more than 100 million IoT devices used by consumers and organizations. The post Name:Wreck DNS Bugs Put IoT Devices At Risk appeared first on Heimdal Security Blog.

DNS 105