However, now it seems that mobile ransomware is starting to become more common, as the international software security group Kaspersky Lab reported that “the firm has stopped 136,532 ransomware attacks between the March 2015 and March 2016 based on the metrics from its own tools on smartphones”. The international software security group Kaspersky Lab described in its statement that “Ransomware is a type of malware that, upon infecting a device, blocks access to it or to some or all of the information stored on it. In order to unlock either the device or the data, the user is required to pay a ransom, usually in Bitcoins or another widely used e-currency”. According to the reports that the international software security group Kaspersky Lab has revealed says that “out of the overall mobile users that are affected by the ransomware mostly belong to the Germany and around 23 percent were affected. After the Germany, the affected users are impacted by this are generally belonged to the Canada where 19.6 percent were affected, in the UK 16.1 percent were affected and in the US 15.6 percent”. But, the software security group Kaspersky Lab disclosed that “the citizens in developed countries are more likely to be hit by the mobile ransomware, apparently because of the advanced mobile-first culture in such nations”. The international software security group Kaspersky Lab also added that “The growth curve may be less than that seen for PC ransomware, but it is still significant enough to confirm a worrying trend”. According to the international software security group Kaspersky Lab, “Fusob” is the largest mobile ransomware that the security firm detected ever, which has been found in over 100 countries and responsible for about 56 percent of the attacks throughout the year and particularly targeted all the Android users. The international software security group Kaspersky Lab has asked all its users to keep their devices updated as well as to be careful while downloading anything from the untrusted or unknown sources to keep their devices safe.