![\"Botnet](\"https:\/\/www.polyas.de\/blog\/wp-content\/uploads\/2016\/11\/Ddos-attack-300x203.png\")
<\/a>Botnet at DDoS-attack<\/p><\/div>\n
DDoS is the abbreviation for “Distributed Denial of Service”. Thus, when a DDoS-attack happens, it should suspend the availability of a computer or system.<\/p>\n
The victim’s system is bombarded with such a high number of service data which cannot be processed anymore. As a result, regular requests by users can only be answered slowly or not at all.
\nThe attack occurs with\u00a0many spread out computers, or rather devices which are infected with malware – a so-called botnet. That is how third parties can control the devices without the owner knowing of it.<\/p>\n
Aims of the offenders<\/h3>\n
DDos-attacks are one of the most common cyber attacks today. Aim of the attacks are\u00a0foremost companies based in the industrial or financial sector. The company is supposed to be put under pressure. However, DDoS-attacks can also be a form of protest. Besides, now they are also used in cyber espionage.<\/p>\n
Networked devices with an independent existence<\/h3>\n
The increasing meaning of the internet of things leads to smart devices being\u00a0abused for DDoS-attacks. Hence all web-enabled devices can become potential tools of cyber criminals. Since they are often delivered with standard passwords and companies rarely update, they are easily to manipulate. Many users do not change their password after they connected their device. This makes it especially easy for hackers to abuse the devices to create a botnet.<\/p>\n
Producers are criticized<\/h3>\n
Not only user are criticized but also the device producers are responsible according to experts. Manufactures rarely publicize updates for their produced devices. The smart devices are so quickly developed that it is not worthwhile to bring updates for old models. Furthermore, producers have to communicate better with their customers. A certain number of users does not know that their device needs regular updates. In addition, producers could force customers to change their password with a software.<\/p>\n
Attack on\u00a0Dyn: Twitter, Amazon and Netflix\u00a0were not available<\/h3>\n
In the morning of October 21 2016, many people on the east coast of the United States had to live for hours without Twitter, Netflix and Spotify. The internet service provider Dyn was the victim of a DDoS-attack. The attack used digital cameras which were infected with the malware Mirai. Although the DNS-provider Dyn protects itself against such attacks, it could not hold out\u00a0the surge. As a result, also websites of Dyn customers were not available. Besides, the created botnet by Mirai has capacity of one terabit and it therefore the biggest known net of this kind.<\/p>\n
DDoS-attack against journalist Brian Krebs: using a sledgehammer to crack a nut<\/h3>\n
The website of journalist Brian Krebs was also recently affected by a massive DDoS-attack. During the attack, 620 gigabit per second were send to Krebs website and thereby shut it down. Usually a fraction of this data volume is sufficient to bring a website to standstill. Moreover, the attacks against Krebs and Dyn probably had the same origin. In the case of Krebs website, the attack could also be attributed to “Mirai”.<\/p>\n
Protection against DDoS-attacks at POLYAS<\/h3>\n
It is complicated to protect yourself preventative against DDoS-attacks, but measures can be taken to moderate the consequences of an attack. We at POLYAS work with trustworthy service provider.<\/p>\n
Furthermore, our infrastructure is constructed in a way which does not allow a\u00a0Single Point auf Failure.\u00a0<\/em>This means that our servers are at various locations and the incoming and outgoing data do not converge at one point. So if one server breaks down, a complete breakdown of the system can be avoided. By using this smart system, we can guarantee a high server availability and security of our customer’s data.<\/p>\nIn case of a DDoS-attack, we outsource the affected parts of our infrastructre to different cloud servers until the surge is over. In additon, we work with several server providern to have a permanent alternative solution at hand.<\/p>\n
Get details about security in online voting with\u00a0POLYAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Many Telekom customers in Germany had to live without internet and telephone on the weekend. Hackers tried to install malware on 900,000 routers and integrate them into a botnet. Presumably to carry out DDoS-attacks. Fortunately, this did not work out thanks to a badly programmed software. However, DDoS-attacks with web-enabled devices have already caused great […]<\/p>\n","protected":false},"author":268,"featured_media":3697,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","ub_ctt_via":"","spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[47],"tags":[740,441,439,443],"featured_image_src":"https:\/\/www.polyas.de\/blog\/wp-content\/uploads\/2016\/11\/DDoS-Attacken.jpg","author_info":{"display_name":"Jaqueline Bargmann","author_link":"https:\/\/www.polyas.de\/blog\/author\/j-bargmann"},"yoast_head":"\n
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<\/a>