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How to Prevent DNS Attacks: DNS Security Best Practices

eSecurity Planet

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. Everything You Need to Know.

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How to Prevent DDoS Attacks: 5 Steps for DDoS Prevention

eSecurity Planet

Distributed denial of service (DDoS) attacks seek to cripple a corporate resource such as applications, web sites, servers, and routers, which can quickly lead to steep losses for victims. However, DDoS attackers sometimes even target the specific computers (or routers) of unwary people – often to harass video gamers, for example.

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DDoS attacks in Q2 2021

SecureList

For example, April saw the active distribution of a new DDoS botnet called Simps — the name under which it introduced itself to owners of infected devices. The malware creators promoted their brainchild on a specially set-up YouTube channel and Discord server, where they discussed DDoS attacks. The bug was named TsuNAME.

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3 ways DNS filtering can save SMBs from cyberattacks

Malwarebytes

That’s where DNS filtering comes in. But first, DNS in a nutshell. So normally, every time your customer types in your web address, their computer makes a request to a DNS server. The DNS server, in turn, tells the computer where to go. But which web-based cyberthreats in particular does DNS filtering stop, you ask?

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DDoS attacks in Q4 2020

SecureList

The DTLS (Datagram Transport Layer Security) protocol is used to establish secure connections over UDP, through which most DNS queries, as well as audio and video traffic, are sent. While the resource was down, cryptocurrency newbies were invited to download a copy of Bitcoin Core via a torrenting service.

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DDoS attacks in Q4 2021

SecureList

Q4 2021 saw the appearance of several new DDoS botnets. In October, the botnet was upgraded with DDoS functionality. This is further evidence that the same botnets are often used for mining and DDoS. In some cases, DNS amplification was also used. The channel was created in June and went live in August 2021.

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KillNet hits healthcare sector with DDoS attacks

Malwarebytes

At the end of January, the Health Sector Cybersecurity Coordination Center warned that the KillNet group is actively targeting the US healthcare sector with distributed denial-of-service (DDoS) attacks. The Cybersecurity and Infrastructure Security Agency (CISA) says it helped dozens of hospitals respond to these DDoS incidents.

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