Tag Archives: cybersecurity

Healthcare cybersecurity in the time of coronavirus

Brno University Hospital, in Brno, Czech Republic, which is one of the country’s Covid-19 testing centers, has recently been hit by a cyberattack. The nature of the attack has yet to be shared, but looks like it might be ransomware. The result? Some surgeries have been postponed and some patients redirected to nearby hospitals. On Sunday, the US Health and Human Services Department was hit by a distributed denial of service (DDoS) attack that, luckily, … More ? The post Healthcare cybersecurity in the time of coronavirus appeared first on Help Net Security .

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Healthcare cybersecurity in the time of coronavirus

Cyber attackers turn to business disruption as primary attack objective

Over the course of 2019, 36% of the incidents that CrowdStrike investigated were most often caused by ransomware, destructive malware or denial of service attacks, revealing that business disruption was often the main attack objective of cybercriminals. Another notable finding in the new CrowdStrike Services Report shows a large increase in dwell time to an average of 95 days in 2019 — up from 85 days in 2018 — meaning that adversaries were able to … More ? The post Cyber attackers turn to business disruption as primary attack objective appeared first on Help Net Security .

How DNS filtering works and why businesses need it

The Domain Name System (DNS) is a cornerstone of the internet. DNS servers connect URL names that humans can read to unique Internet Protocol (IP) addresses that web browsers can understand. Without DNS, we’d all be typing in long, seemingly random combinations of characters and numbers in order to get anywhere online! However, this dependency opens up the possibility for misuse. From domain hijacking and cache poisoning to Denial of Service attacks, DNS is no … More ? The post How DNS filtering works and why businesses need it appeared first on Help Net Security .

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How DNS filtering works and why businesses need it

Attackers increasingly embrace small-scale DDoS attacks to evade detection

The growth in both large- and small-scale DDoS attacks continues its upward trajectory, according to a report released by Neustar. The report reveals that the total number of DDoS attacks was up 241% in the third quarter of 2019, compared to the same period last year. The report also confirmed the continued increase in small-scale attacks and the use of multiple threat vectors, as new vectors continue to expand the attack surface that organizations must … More ? The post Attackers increasingly embrace small-scale DDoS attacks to evade detection appeared first on Help Net Security .

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Attackers increasingly embrace small-scale DDoS attacks to evade detection

Countering industrial cyberthreats with secure, standards-based, licensed wireless networks

Over the past few years, cyber threats aimed at a number of critical infrastructure targets have drawn our attention to the security of mission critical networks. These threats have included power grids in Ukraine and Ireland, U.S. energy companies and nuclear power plants, and most recently, at an electric utility on the West Coast where a distributed denial-of-service (DDoS) attack overwhelmed grid network systems with false Web traffic. This was the first documented digital attack … More ? The post Countering industrial cyberthreats with secure, standards-based, licensed wireless networks appeared first on Help Net Security .

Global communications service providers struggling to fend off growing number of DDoS attacks

Global communications service providers, whose businesses are predicated on continuous availability and reliable service levels, are struggling to fend off a growing number of DDoS attacks against their networks. A lack of timely and actionable intelligence is seen as a major obstacle to DDoS protection, according to A10 Networks. The critical need for DDoS protection The A10 Networks study conducted by the Ponemon Institute highlights the critical need for DDoS protection that provides higher levels … More ? The post Global communications service providers struggling to fend off growing number of DDoS attacks appeared first on Help Net Security .

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Global communications service providers struggling to fend off growing number of DDoS attacks

CISO’s guide to an effective post-incident board report

A successful cyberattack is undoubtedly one of the most disruptive events an organization can experience. Whether it’s phishing, DDoS, ransomware or SQL injection, the incident often results in major service failures and potentially massive revenue loss, as well as damage to brand reputation and customer trust. As CISO, you are charged not just with overseeing the response and mitigation processes post-breach but also with assembling all relevant information in a post-incident report to the board. … More ? The post CISO’s guide to an effective post-incident board report appeared first on Help Net Security .

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CISO’s guide to an effective post-incident board report

Average DDoS attack volumes grew by 194% in 12 months

The volume and complexity of DDoS attacks continued to grow in Europe during the final quarter of 2018, according to Link11. While Link11’s Security Operations Center (LSOC) registered 13,910 attacks in Q4 (12.7% down compared to Q3), the average attack volume grew by 8.7% to 5Gbps, and 59% of attacks used multiple attack vectors. Key findings of Link11’s Q4 DDoS report include: Average attack volumes grew by 194% in 12 months: In Q4 2018, average … More ? The post Average DDoS attack volumes grew by 194% in 12 months appeared first on Help Net Security .

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Average DDoS attack volumes grew by 194% in 12 months

Researchers analyze DDoS attacks as coordinated gang activities

In a new report, NSFOCUS introduced the IP Chain-Gang concept, in which each chain-gang is controlled by a single threat actor or a group of related threat actors and exhibit similar behavior among the various attacks conducted by the same gang. IP Gang attack-type classification against attack volume size Researchers analyzed attack types, volume, size of events, gang activities, and attack rates. By studying the historical behavior of the 80 gangs identified in the report, … More ? The post Researchers analyze DDoS attacks as coordinated gang activities appeared first on Help Net Security .

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Researchers analyze DDoS attacks as coordinated gang activities

Why you shouldn’t be worried about UPnP port masking

Last May, security firm Imperva wrote a blog post discussing a new proof of concept for bypassing DDoS mitigation after discovering reflected network protocols appearing on non-standard network ports. Imperva was able to replicate the same behavior using a technique called UPnP Port Masking, which uses the Universal Plug and Play (UPnP) Protocol to alter the source port of commonly abused network protocols in DDoS attacks. Multiple news outlets picked up on Imperva’s research and … More ? The post Why you shouldn’t be worried about UPnP port masking appeared first on Help Net Security .

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Why you shouldn’t be worried about UPnP port masking