Social networks like Facebook and Twitter are fabulous platforms for sharing information and news. Retailers of all stripes have tapped into this and are using them to get the word out virally about discounts, sales and in-store events. Unfortunately, mechanisms for vetting online reputation haven t quite kept up with the marketplace, which can make social networks an ideal platform for social engineering attacks. Facebook wall posts and tweets from an account that appears to be associated with a vendor are no more trustworthy than links in an unsolicited e-mail. Security firm advises users to treat such solicitations with suspicion.
Source: https://threatpost.com/6-anti-social-networking/91774/