Let's Hack the World

Key points Artificial Intelligence (AI)  is driving the need for next-generation data centers that can support high-performance computing , low-latency data transfer , and sustainable operations . AI data centers  are specifically designed to handle complex AI workloads , featuring specialized hardware accelerators , advanced cooling systems , and high-performance storage . Hyperscale cloud providers ,  neocloud providers , and  colocation specialists  are key players in the AI data center landscape, each offering unique advantages and challenges. As I report from the world of technology,  Artificial Intelligence (AI)  is moving at an unprecedented pace, with innovations expanding its capabilities at a rapid rate. This has significant implications for  enterprise architecture , as existing data center capabilities are no longer sufficient to support the demands of AI workloads. According to sources, the rapid evolution of AI requires  next-ge...

No system is 100% hack-proof, but there are plenty of steps you can take to make it much harder for attackers to break in. Both individuals and organizations should follow some key security practices to stay safe online. Keep Your Software Up to Date Hackers are always hunting for security holes that haven’t been patched yet. Updating your apps, operating system, and devices regularly is one of the simplest yet most effective defenses. Turn on automatic updates so you’re always running the latest version. Use Strong, Unique Passwords One of the biggest reasons accounts get hacked is weak or reused passwords. Never use the same password across different sites. Instead, create strong, unique passwords for each account. This way, even if one account is compromised, the rest stay safe. Look for HTTPS Before Entering Info Fake websites are a common way hackers trick people into giving away their login details. Before entering any personal information, check that the website address st...

What is Session Hijacking ? Session hijacking is the act of taking control of a user session after successfully obtaining or generating an authentication session ID. Session hijacking involves an attacker using captured, brute forced or reverse-engineered session IDs to seize control of a legitimate user's Web application session while that session is still in progress. TCP session hijacking is when a hacker takes over a TCP session between two machines. Since most authentication only occurs at the start of a TCP session, this allows the hacker to gain access to a machine. Techniques : There are mainly three methods used to perpetrate a session hijack. These are: 1. Session Fixation: The session fixation attack is a class of Session Hijacking, which steals the established session between the client and the Web Server after the user logs in. Instead, the Session Fixation attack fixes an established session on the victim's browser, so the attack starts...

What is Sidejacking ? Sidejacking is the process of sniffing cookie information, then replaying them against websites in order to clone a victim’s session. We use the term sidejacking to distinguish this technique from man-in-the-middle hijacking. Whereas man-in-the-middle hijacking interferes with the original session, sidejacking does not. The victim continues to use his session blissfully unaware that we are also in his account. SideJacking works only if the site catches a non-SSL cookie, so any Web site that uses SSL exclusively would be safe from SideJackers. SideJacking was first demonstrated by Robert Graham , CEO of Errata Security at Black Hat in 2007. Techniques : All you need to do in order to sidejack is sniff cookies off the wire and edit cookies. This can be done with a wide variety of tools. 1. WinPcap is the industry-standard tool for link-layer network access in Windows environments: it allows applications to capture and transmit network packets by...

What is ARP ? The Address Resolution Protocol (ARP) is a computer networking protocol for determining a network host's hardware address (MAC) or link layer when only its Internet Layer (IP) or Network Layer address is known. In fact it’s a IP to MAC mapping. Broadcast ARP Request: Jessica, the receptionist, tells Word to print the latest company contact list. This is her first print job today. Her computer (IP address 192.168.0.16) wants to send the print job to the office's HP LaserJet printer (IP address 192.168.0.45). So Jessica's computer broadcasts an ARP Request to the entire local network asking, "Who has the IP address, 192.168.0.45?" Unicast ARP Reply: All the devices on the network ignore this ARP Request, except for the HP LaserJet printer. The printer recognizes its own IP in the request and sends an ARP Reply: "Hey, my IP address is 192.168.0.45. Here is my MAC address: 00:90:7F:12:DE:7F" ...

What is Session Fixation ? Session Fixation is an attack that permits an attacker to hijack a valid user session. The attack explores a limitation in the way the web application manages the session ID, more specifically the vulnerable web application. When authenticating a user, it doesn’t assign a new session ID, making it possible to use an existent session ID. The attack consists of inducing a user to authenticate himself with a known session ID, and then hijacking the user-validated session by the knowledge of the used session ID. The attacker has to provide a legitimate Web application session ID and try to make the victim's browser use it. Attack Scenario : 1. Mallory has determined that http://unsafe/ accepts any session identifier, accepts session identifiers from query strings and has no security validation. http://unsafe/ is thus not secure. 2. Mallory sends Alice an e-mail: "Hey, check this out, there is a cool new account summary fe...