Liste des hashtags les plus populaires par sujet #CYBERATTACKS

The CSRF attack is a malicious exploit against a website whereby unauthorized commands are transmitted from an authorized user to the web server, typically by clicking on a malicious link. Let’s say the victim logs onto http://wellsfargo.com/. The victim is like any other web user in which he is authorized to perform specific actions, such as deposit, withdraw, transfer, etc. Since the user is authenticated to the server, the web site trusts the user and the hacker exploits this trust - Here’s a quick example of how the attack works (disclaimer: you won’t typically see security holes like this on modern web apps). Assume the victim is authenticated to http://wellsfargo.com/. Also assume that the developers are using GET requests instead of POST requests. The victim can make a GET request that allows the web application to transfer $100 to his friend’s account. This might look something like this: http://wellsfargo.com/transfer.do?acct=FriendAccount=$100. A hacker, however, can modify this GET request to look like this: http://wellsfargo.com/transfer.do?acct=HackerAccount=$100. This new hyperlink transfers $100 from the victim’s account to the hacker’s account. But, the victim would first need to be tricked into clicking this link for this to work . While still authenticated to Wells Fargo, let’s say the victim receives an e-mail from a targeted mass phishing campaign. The e-mail contains the malicious link within an tag, such as:

Some of the new @Cisco toys. 9300 Switches, 3800 WAPs, high speed modules, etc etc. Let the party begin.

SS7 Pentesting Toolkit  The toolkit is build upon the Osmocom SS7 stack and implements some basic MAP messages. At its current state tests against the HLR are ready for use, in future versions tests against VLR, MSC and SMSCwill follow. The tool is written in Erlang; to get it running you will need the Erlang runtime environment. It is developed for version 17.5. Signalling System No. 7 (SS7) is a set of telephony signaling protocols developed in 1975, which is used to set up and tear down most of the world’s public switched telephone network (PSTN) telephone calls. It also performs number translation, local number portability, prepaid billing, Short Message Service (SMS), and other mass market services. As you can see in the picture, the demonstrated test cases for the HLR respond to most of the MAP messages regardless the fact that we are not registered as valid provider. The tool is not configured as a serving MSC nor a roaming contractor. Some of the information gathered can be seen as critical, as the MSISD -> IMSI resolution, the over-the-air crypto keys or the ability to create supplementary services e.g. call forwarding. The messages and test cases are gathered from public SS7 research of the last years (see 1, 2) and check for known weaknesses in the SS7 domain. The tool itself was developed under a cooperation with the Belgium provider Proximus and aims to test the secure configuration of the internal and external SS7 network access. Thanks a lot for giving us the opportunity here, we are convinced that the tool gives the research community but also telecommunication providers a new, important and (especially) open-source-based possibility for SS7 testing. #hacker #hacks#hackathon #hacked #cybersecurity #cybergoth #cyb3rsqu4d #cyberattacks #bugcrowd #bugbounty #bughunting #bughunter #blueteam #redteam #computerscience #pentester#penetrationtesting #pentesting #securityexpert #ss7

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My Article in DINAKARAN magazine explaining about #cyber #attacks & its implications Date of Issue - 26-05-2019, Sunday- DINAKARAN, Vasantham Magazine. For full article click https://epaper.dinakaran.com/m5/2168365/Dinakaran-Vasantham/26-05-2019#page/16/1 #cybersecurity #cyberawareness #prompt  #promptinfotech #sankarraj #sankarrajsubramanian #cyberattacks  #dinakaran #magazine #article #news

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