1. Introduction:
Today in this age of wide spread online social networking, there are various scenarios in which many accounts exist which are not what they claim to be or not what they portray to the other users of the social network. The phrase ‘fake accounts’ is a widely spreading term in social networks all over the world today. In online social networks (OSN) the term fake account is associated with the term called Sybil attack. Sybil (means fake) attacks refer to the creation of fake nodes in a network that are intended for the purpose of dangerous or suspicious activities. The fake nodes when looked into online social networks refer to fake users, each being called a Sybil, which are created to spread malware or spam throughout the network[. Sybil Attack has widely effected the security of many OSNs including Facebook, Renren, Twitter, Tuenti etc. They have been responsible for data leakage, acquire access to private data or resources. It can also be responsible for ‘Clickfraud’ when it is used for controlling and increasing the number of views/visits on a single page. Sybil accounts are generally under the control of real but evil users. They aim at increasing their influence on the network by becoming wide-spread and taking over the network. Thus the online social networks have to be guarded against Sybil attacks in order to prevent their accounts from being impersonated or taken over by Sybil nodes. This mechanism is known as Sybil defense which uses various mechanisms to shield the network against Sybil Attacks. The Sybil defense mechanisms can be incorporated only once the network can detect the presence of Sybil accounts, thus we need several Sybil detection techniques which take up several approaches to detect the pr...
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...owdsourcing- appointing different categories of workforce (real humans) to detect the Sybil accounts in the social networking sites. The survey in paper shows that real humans are better than pre-designed algorithms when it comes to detecting Sybil accounts as they easily adapt to the changing properties of the account. The survey is mainly conducted on 3 major social networking sites i.e. Renren in China, Facebook in USA, and Facebook in India. The data is collected from these sites and tested on three different categories of work-force, one the experts, two the Turkers and three the sociology undergraduates and the results are summarized and analyzed for their accuracy, dependence on demographic data and various other factors. The above analysis is kept in mind and a new practical crowdsourcing Sybil detection system is designed which is more accurate and scalable
Sybil attacks are a threat to geographical routing protocols, since they require the exchange of coordinates for efficient packet routing. Ideally, a node only sends a set of coordinates, but under a Sybil attack, an attacker could pretend to be in many places at once. The Sybil attack can significantly reduce the effectiveness of fault-tolerant schemes such as distributed storage dispersity and multipath routing, and topology maintenance. Replicas, storage partitions, or routes believed to be using disjoint nodes could in actuality be using a single adversary presenting multiple identities. All of the techniques involve utilizing multiple identities. For instance, in a sensor network voting scheme, the Sybil attack might utilize multiple identities to generate additional “votes”. Similarly, to attack the routing protocol, the Sybil attack would rely on a malicious node taking on the identity of multiple nodes, and thus routing multiple paths through a single malicious
In sybil attack, a attacker presents multiple addresses and behaves as if it were a group of nodes. There are, mainly, two different ways through which a sybil node can get an identity; stealing other node’s identity or fabricating fake identities. By impersonating a large number of nodes in the network, the attacker forbids other nodes from using those addresses, it can escape from detection systems. This attack can strongly harm geographic routing protocols, and can even threat multiple path routing schemes and node localization [18].
The Impact of Online Identity Theft on Consumers and Organizations Internet fraud has become a major issue due to the ever increasing population of internet users, because the internet is such an easy solution to fast sufficient services readily available for busy lives that’s is why most of us are now dependant on the internet in some shape or form and each time we use the internet we input data that are related to use from our name, address and even bank details with the assurance that the site is safe and trustworthy, but this is not always the case because the security system implemented like all things in this world has weaknesses.
The web has in recent years brought new concerns about privacy in an age where technology indefinitely stores and records all social media aspects, every online photo posted, every status update, blogs and twitter posts by and about us will be stored forever available for future generations to see. At the heart of the Internet culture is a force that wants to find out everything about you. In 2010 Microsoft published a report that stated that 75 percent of United States recruiters and human resource professionals that they surveyed are not only checking online sources to learn about potential candidates, but they also reported that their companies have made online screening a formal requirement before hiring any candidates. Of the recruiters and human resource professionals surveyed 70 percent say they rejected candidates based on information found on social media site. This has lead so many people’s awareness about online privacy and the need to control public access to private accounts by online privacy settings in order to protect they online and real world reputation. There have been legal suits against many sites and employer’s over the invasion of privacy on the internet. The authenticity of what the recruiters find on these social media sites should be questioned.
In today’s society, we often ask if social media is a good or bad thing. There so many good things about social media but even more negative things. The pros and cons are endless to say, but the reasons on why social has good or bad reputation is due to the lack of control on the internet. Social media has so many positives. From connectivity to self /business promotion or to awareness to culture. The negatives from bullying to hackers and stalkers. They lack of communication that lead to violence. Social Networks are one of the most entertaining activities to humans with over billions of accounts around the world; however, sometimes it affects us in very negative ways.
All this information that we naively post online can affect our personal life. Even though, Social networking sites do not pose much of a threat on physical security, but they can pose serious effects on information and operational security. Any personal information that is posted on social media networks can aid identity thieves. Many financial institutions use security questions such as date of birth, mother’s maiden name, and pets’ names, which are commonly posted by users on these social networks. Identity thieves also use illegitimate third-party applications and false connection requests to gain personal information. These applications may be in the form of games, quizzes, and questionnaires that are designed to provide assistance with
As said in above quote, social networking sites (SNS) give their users an easy way to share information about themselves. However, no one knows including social networking sites (sometime) that who is going to access the information available online about the user. For example, in recent time burglars have been using SNS (e.g. Facebook, twitter etc) to track people’s location and to discover when home owners are on holidays. This kind of problem is making SNS users vulnerable. Nevertheless, the problem does not finish here; it stretches further when users of SNS find that their every movement on SNS is being monitored. A user’s activity on SNS is not only monitored by SNS but also by others e.g. partner. Tokunaga (2010) explains that estimates suggest that people are increasingly using SNSs for engaging in th...
Many cybercrimes, that is crimes committed online, continue to flourish because people unintentionally or carelessly leave sensitive information online. Cybercriminals are provided with new areas to exploit as well as new areas for recruitment as a result of the proliferation of social networking websites (Rush et al., 2009). There are many types of cybercrimes committed including fraud and scam, identity theft and also hacking via computer viruses or malware. A significant number of people become victims of online fraud and scam as a result of their lack of information about it and also through the process of sharing personal information. Frauds and scams usually involve deception so as to procure unlawful gain, most especially after trust is gained. In the UK alone, credit card fraud is estimated to have reached over £500 mill...
Dissociative Identity Disorder which defined as a dramatic dissociative disorder in which a patient manifests two or more distinct identities or personality states that alternate in some way in taking control of behavior. In the case of Sybil dissociative identity disorder (or previously known multiple personality disorder) became apparent in her behavior by the time she pursued her studies as a teacher. She displayed 16 "personalities" which recurrently take control of her behavior at times when she encounters stressful stimuli, or stimuli that call for a specific way of response from a personality state. In many parts of the film, she showed significant variations in behavior, thinking style and memory of the past. She would come to her psychiatrist
Information is being shared online each time users browse the internet. This information is being disclosed from visited sites, and is being used by companies to better target customers. Sites, such as Facebook, Twitter, and Google plus are capable of tracking browsing activities, not only within the site, but beyond those boundaries. From each Facebook page like, to Twitter’s tweet button, personal information is made available to others. This paper will explore the technical and ethical considerations of the personal information being shared on the web for targeting customers based on their likes. This paper also covers the issues and concerns of data mining, and the privacy of online consumers. I will explain how personal information is obtained, and what purposes it is used for. I will also cover ways in which we can control how our information is being handled, and how to keep information out of other people’s hands.
Social media is an internet based platform where people interact freely, discussing and sharing information about their day to day lives. This can be fun and interesting but it poses a greater security risk than the picture painted on the different site’s, sharing information freely sound like a great idea but put the information on the wrong hands and it could be a disaster. Dishonest actors, criminals and con artists use this as an opportunity for nefarious purpose, attackers have increasingly developed ways to get hands to your private data without your knowledge through the same social media sites, this has grown out of containerbility due to the increased technological knowhow by the attackers and lesser security measures on the internet,
Social networks are increasing dramatically every year. Employers are turning to social networks because it is a tool to screen job applicant’s profiles. According to a survey conducted by jobvite.com (2013), 94 % of employers use social media profiles to recruit job applicants. This trend assists the applicants and recruiters. Job applicants should be judged by their social network profiles because social media give positive image about the candidate, prove the information in the resume, and help to identify if the person fits the culture of the company or not.
Cybercrime and social media are two major global problems that impact society. Today, are more accessible to computers and the Internet than in years prior. Nonetheless, perpetrators attack social media with illegal activity to facilitate their crime. There are different strategies or practices by various countries to combat cybercrime. However, identity theft, cyberbullying and phishing are three major type of cybercrimes which are impacting social networking websites.
Today technology has created new styles of communication on the internet for us all. This technology has made great impact on everyday life in today’s society. Cyber communications have become hugely popular in the last decade, especially those websites that help people to find new or old friends, keep in touch with families, and even help people to find potential dates! The numbers of people using cyber social networking are growing in millions every year. Cyber social networks have helped people link to each other with common interests, and expand personal ideas and support worldwide. But people are getting too friendly with this technology. Dangers are slowly appearing, and there still have a lot of hidden threats. Cyber social networks are threats to our personal social lives, lead into new addictions, and compromise the security of privacy issues.
Nowadays, we are living in the “ technology world”, digital’s century, science and technology are being devolopped like a rain-storm, people try their best effect to serve for human’s infiniti demand. Internet in general and social network in particular are exceedingly funtional tools. Indeed, with over 1.3 billion active users in June,2014 ( Wikipedia), there is no suprise that Facebook has been becoming a leading social network in the world, “Facebook was not originally created to be a company. It was built to accomplish a social mission - to make the world more open and connected” – CEO of Facebook: Mark Zuckerberg (google). Facebook truthly brought many useful; however, it is still “ a double-edged sword”.