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Showing posts from March, 2020

Small DDoS Attacks Cause Big Problems

Distributed denial of service (DDoS) attacks make headlines when they are 1) large enough to cripple a website and 2) the affected website belongs to a recognizable organization. For example, we’ve seen news stories about attacks on websites with many users (such as PlayStation, a gaming website) or websites that serve a critical function (such as the South African State Broadcasting Corporation). DDoS defense techniques However, most DDoS attacks are not large, volumetric attacks, and DDoS hackers target all kinds of organizations, not only big, household name companies or government agencies. No website or online application is immune to DDoS, and any size DDoS attack is cause for alarm. You see, DDoS is not just a web availability issue; it’s a security issue. Corero research has shown that the vast majority (93%) of DDoS attacks are under 1 Gbps, and 96% last less than 30 minutes. That’s certainly not enough to cripple a website. So why would hackers launch such attacks, and

Identifying Denial-of-Service Attacks

A Distributed Denial of Service (DDoS) attack is an attempt to crash a web server or online system by overwhelming it with data. DDoS attacks can be simple mischief, revenge, or hacktivism, and can range from a minor annoyance to long-term downtime resulting in loss of business. Hackers hit GitHub with a DDoS attack of 1.35 terabytes of data per second in February of 2018. That’s a massive attack, and it’s doubtful that it will be the last of its kind. how to do a ddos attack ? Unlike ransomware or attacks from APT groups, which are financially motivated, DDoS attacks are more disruptive and annoying. How bad can it get? Thousands of avid gamers couldn’t get on Classic WoW because of a DDoS attack!  The point is attackers don’t make money off of a DDoS attack – they’re simply doing it to cause pain. DDoS attacks most often work by botnets – a large group of distributed computers that act in concert with each other –simultaneously spamming a website or service provider with dat

DDoS mitigation approaches

DDoS mitigation approaches follow a multi-step process of detection of malicious traffic, followed by scrubbing, rerouting or dropping such traffic. Defining normal "traffic patterns" helps to identify abnormal traffic, and also to differentiate between human and bot traffic. Scrubbing involves running heuristic algorithms on the traffic to detect anomalies. Previously, most of these checks were done in hardware. Today, some of them are also done in software. what is ddos mean ? A technique called "blackhole routing" or "null routing" is used to discard traffic, which might also cause non-malicious traffic to be dropped if there are no filtering criteria. Linode will "block the attack inline, then distribute the increased traffic across its global fiber backbone" in the event of an attack. According to reports, Linode's current solution will adopt null routing if the attack is sufficiently large, and they also recommend using an addition

How DDoS Protection Works

Website owners and administrators across the globe must always be prepared for the possibility of an attack. Web attacks can come in many forms, ranging from phishing schemes and hacks to increasingly common DDoS attacks. These days, websites of all sizes are prone to DDoS attacks, which can cause access problems for users. What Is a DDoS Attack ? Essentially, a DDoS attack affects a website by bombarding its servers with “fake” traffic. This traffic, depending on the attack size, can overwhelm the website’s servers and result in a denial of service. As a result, the site’s legitimate users may have difficulty accessing the website until the attack is properly handled. DDoS attacks can range in size and severity from a couple of gigabytes per second to several hundred gigabytes; the larger the attack, the more difficult it can be to stop. And they are becoming larger, more common and more unpredictable than ever before (a major website was recently taken down with a record attac

Bitfinex: the cyber attack is over

The DDoS cyberattack suffered this morning by the server of the Bitfinex exchange has ended. At this time all systems are active and the services are back 100% operational. The attack has actually lasted very little, less than half an hour, and when it ended it doesn’t seem to have left any traces. Know more:  what happens during a ddos attack? Besides, it was a trivial DDoS attack, an attempt to block the server’s reactivity by flooding it with more connections than it could handle. This type of attack does not generally cause damage, but only a suspension of the server’s operation, making it simply unable to respond to all requests. As a precaution, the company suspended all services, waiting for the attack to stop before returning everything online, after having raised protection levels against this type of attack. Now, with protection levels raised, the server should be better able to withstand this type of attack, although it all depends upon the intensity of the at