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CIS608 - Week9 - WannaCry - Ransomeware

WannaCry - Ransomware On May 12, 2017, IT world witnessed new ransomware called WannaCry and it impacted 300,000 immediately. This ransomware exploits the vulnerabilities in the Windows file-sharing protocol. The infiltration of this threat is through and point devices such as Windows devices that allowed inbound SMB communications on firewall ports 139 or 445 and had not been updated with the latest Microsoft security patch. Once a device had been exploited, the malware would scan for other vulnerable devices and spread over. The way Ransomware works is - once it infects, it encrypts, scrambles the data and then it demands to payout in cryptocurrency. The clients will always think whether to pay out for removing the ransom or replacing the system affected depending on the value of the data being attacked and replacement costs. It is not always true that the hijacked data can be retrieved, reinstalled and never be exported when payments are made. Dep...
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CIS608 - Week6 - Common threats to Computer Network

Network Security:             A group of computers connected together to form to be a Network.  All of those interconnected devices communicate with each other to perform the tasks assigned to them. These networks form the hubs and the life for many of the software giants as they deal with the accessing of the corporate information and the confidential data. Authentication is the procedure in which the user is asked to provide the details like his username and the password. After he tries to login with those details he is then allowed to access a certain part of the database or the system only if his authentication is successful. This normal and simple form of the authentication is called one-time authentication. There are also several other forms of authentication like two-factor authentication in which the user also has something to use like his card or swipe cards to obtain permissions in addition to his login details als...
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CIS608 - Week7 - Crypto currency, and keeping it safe

Cryptocurrency A cryptocurrency is a digital currency in which encryption techniques (cryptography) are used to regulate the generation of units of currency and verify the transfer of funds, operating independently of a central bank. The first cryptocurrency created was Bitcoin back in 2009. Today, there are hundreds of cryptocurrencies, often referred to as Altcoins. The popularity of cryptocurrency has also increased the rise in the number of crypto exchanges in the market lately. Undoubtedly, there’s a great opportunity in this area to make a profit on crypto trades. At the same time, being a naïve and unregulated market for cryptocurrencies, it has become prey for hackers. A report in the Wall Street Journal  shows more than $US800 million worth of cryptocurrency has been stolen by hackers this year. The figures are based on an investigation by Autonomous Research, an independent research provider for the finance industry. We cannot recover stolen cryptocurrency ...
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