Staying Safe on Social Network Sites
National Cyber Alert System
Cyber Security Tip ST06-003
US-CERT is aware of public reports of malicious code spreading via popular social networking sites including myspace.com, facebook.com, hi5.com, friendster.com, myyearbook.com, bebo.com, and livejournal.com.
The reports indicate that the malware, named Koobface, is spreading through invitations from a user's contact that include a link to view a video. If the users click on the link in this invitation, they are prompted to update Adobe Flash Player. This update is not a legitimate Adobe Flash Player update, it is malicious code.
Additionally, some of the reports indicate that there are multiple bogus applications from other social networking sites being used to obtain users' private information.
We encourage you to do the following to help mitigate the risks:
* Install antivirus software and keep the virus signature files up to date.
* Do not follow unsolicited links.
* Use caution when downloading and installing applications.
* Obtain software applications and updates directly from the vendor's website.
* Refer to the Staying Safe on Social Networking Sites document for more information on safe use of social networking sites.
* Refer to the Avoiding Social Engineering and Phishing Attacks document for more information on social engineering attacks.
To visit the US-CERT national cyber alert site - click this link: http://www.us-cert.gov/cas/tips/ST06-003.html
Or read the article below
What are social networking sites?
Social networking sites, sometimes referred to as "friend-of-a-friend" sites, build upon the concept of traditional social networks where you are connected to new people through people you already know. The purpose of some networking sites may be purely social, allowing users to establish friendships or romantic relationships, while others may focus on establishing business connections.
Although the features of social networking sites differ, they all allow you to provide information about yourself and offer some type of communication mechanism (forums, chat rooms, email, instant messenger) that enables you to connect with other users. On some sites, you can browse for people based on certain criteria, while other sites require that you be "introduced" to new people through a connection you share. Many of the sites have communities or subgroups that may be based on a particular interest.
What security implications do these sites present?
Social networking sites rely on connections and communication, so they encourage you to provide a certain amount of personal information. When deciding how much information to reveal, people may not exercise the same amount of caution as they would when meeting someone in person because
the internet provides a sense of anonymity the lack of physical interaction provides a false sense of security they tailor the information for their friends to read, forgetting that others may see it
they want to offer insights to impress potential friends or associates
While the majority of people using these sites do not pose a threat, malicious people may be drawn to them because of the accessibility and amount of personal information available on them. The more information malicious people have about you, the easier it is for them to take advantage of you. Predators may form relationships online and then convince unsuspecting individuals to meet them in person. That could lead to a dangerous situation. The personal information can also be used to conduct a social engineering attack (see Avoiding Social Engineering and Phishing Attacks for more information). Using information that you provide about your location, hobbies, interests, and friends, a malicious person could impersonate a trusted friend or convince you that they have the authority to access other personal or financial data.
How can you protect yourself?
Limit the amount of personal information you post - Do not post information that would make you vulnerable (e.g., your address, information about your schedule or routine). If your connections post information about you, make sure the combined information is not more than you would be comfortable with strangers knowing.
Remember that the internet is a public resource - Only post information you are comfortable with anyone seeing. This includes information in your profile and in blogs and other forums. Also, once you post information online, you can't retract it. Even if you remove the information from a site, saved or cached versions may still exist on other people's machines (see Guidelines for Publishing Information Online for more information).
Be wary of strangers - The internet makes it easy for people to misrepresent their identities and motives (see Using Instant Messaging and Chat Rooms Safely for more information). Consider limiting the people who are allowed to contact you on these sites. If you interact with people you do not know, be cautious about the amount of information you reveal or agreeing to meet them in person.
Be skeptical - Don't believe everything you read online. People may post false or misleading information about various topics, including their own identities. This is not necessarily done with malicious intent; it could be unintentional, a product of exaggeration, or a joke. Take appropriate precautions, though, and try to verify the authenticity of any information before taken any action.
Check privacy policies - Some sites may share information such as email addresses or user preferences with other companies. This may lead to an increase in spam (see Reducing Spam for more information). Also, try to locate the policy for handling referrals to make sure that you do not unintentionally sign your friends up for spam. Some sites will continue to send email messages to anyone you refer until they join.
Children are especially susceptible to the threats that social networking sites present. Although many of these sites have age restrictions, children may misrepresent their ages so that they can join. By teaching children about internet safety, being aware of their online habits, and guiding them to appropriate sites, parents can make sure that the children become safe and responsible users (see Keeping Children Safe Online for more information).
Cyber Security Tip ST06-003
US-CERT is aware of public reports of malicious code spreading via popular social networking sites including myspace.com, facebook.com, hi5.com, friendster.com, myyearbook.com, bebo.com, and livejournal.com.
The reports indicate that the malware, named Koobface, is spreading through invitations from a user's contact that include a link to view a video. If the users click on the link in this invitation, they are prompted to update Adobe Flash Player. This update is not a legitimate Adobe Flash Player update, it is malicious code.
Additionally, some of the reports indicate that there are multiple bogus applications from other social networking sites being used to obtain users' private information.
We encourage you to do the following to help mitigate the risks:
* Install antivirus software and keep the virus signature files up to date.
* Do not follow unsolicited links.
* Use caution when downloading and installing applications.
* Obtain software applications and updates directly from the vendor's website.
* Refer to the Staying Safe on Social Networking Sites document for more information on safe use of social networking sites.
* Refer to the Avoiding Social Engineering and Phishing Attacks document for more information on social engineering attacks.
To visit the US-CERT national cyber alert site - click this link: http://www.us-cert.gov/cas/tips/ST06-003.html
Or read the article below
What are social networking sites?
Social networking sites, sometimes referred to as "friend-of-a-friend" sites, build upon the concept of traditional social networks where you are connected to new people through people you already know. The purpose of some networking sites may be purely social, allowing users to establish friendships or romantic relationships, while others may focus on establishing business connections.
Although the features of social networking sites differ, they all allow you to provide information about yourself and offer some type of communication mechanism (forums, chat rooms, email, instant messenger) that enables you to connect with other users. On some sites, you can browse for people based on certain criteria, while other sites require that you be "introduced" to new people through a connection you share. Many of the sites have communities or subgroups that may be based on a particular interest.
What security implications do these sites present?
Social networking sites rely on connections and communication, so they encourage you to provide a certain amount of personal information. When deciding how much information to reveal, people may not exercise the same amount of caution as they would when meeting someone in person because
the internet provides a sense of anonymity the lack of physical interaction provides a false sense of security they tailor the information for their friends to read, forgetting that others may see it
they want to offer insights to impress potential friends or associates
While the majority of people using these sites do not pose a threat, malicious people may be drawn to them because of the accessibility and amount of personal information available on them. The more information malicious people have about you, the easier it is for them to take advantage of you. Predators may form relationships online and then convince unsuspecting individuals to meet them in person. That could lead to a dangerous situation. The personal information can also be used to conduct a social engineering attack (see Avoiding Social Engineering and Phishing Attacks for more information). Using information that you provide about your location, hobbies, interests, and friends, a malicious person could impersonate a trusted friend or convince you that they have the authority to access other personal or financial data.
How can you protect yourself?
Limit the amount of personal information you post - Do not post information that would make you vulnerable (e.g., your address, information about your schedule or routine). If your connections post information about you, make sure the combined information is not more than you would be comfortable with strangers knowing.
Remember that the internet is a public resource - Only post information you are comfortable with anyone seeing. This includes information in your profile and in blogs and other forums. Also, once you post information online, you can't retract it. Even if you remove the information from a site, saved or cached versions may still exist on other people's machines (see Guidelines for Publishing Information Online for more information).
Be wary of strangers - The internet makes it easy for people to misrepresent their identities and motives (see Using Instant Messaging and Chat Rooms Safely for more information). Consider limiting the people who are allowed to contact you on these sites. If you interact with people you do not know, be cautious about the amount of information you reveal or agreeing to meet them in person.
Be skeptical - Don't believe everything you read online. People may post false or misleading information about various topics, including their own identities. This is not necessarily done with malicious intent; it could be unintentional, a product of exaggeration, or a joke. Take appropriate precautions, though, and try to verify the authenticity of any information before taken any action.
Check privacy policies - Some sites may share information such as email addresses or user preferences with other companies. This may lead to an increase in spam (see Reducing Spam for more information). Also, try to locate the policy for handling referrals to make sure that you do not unintentionally sign your friends up for spam. Some sites will continue to send email messages to anyone you refer until they join.
Children are especially susceptible to the threats that social networking sites present. Although many of these sites have age restrictions, children may misrepresent their ages so that they can join. By teaching children about internet safety, being aware of their online habits, and guiding them to appropriate sites, parents can make sure that the children become safe and responsible users (see Keeping Children Safe Online for more information).
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