In recent years, Bangladesh has become one of the most vulnerable countries in cyber space. Cyber-attacks often took place, which caused loss of assets in very recent time. With the increasing number of internet users, the number of attacks ratio is also going up. According to the Kaspersky Security Bulletin 2015, Bangladesh is in the second position in the level of infection among all the countries. 69.55% unique users are in the highest risk of local virus infection in Bangladesh. 80% users are the victim of spam attack according to Trend Micro Global Spam Map. In a recent test of two hours that was run in Bangladesh Computer Council, total number of infected IP in Bangladesh was 34552. IP’s of renowned companies like Grameen Phone, Banglalion, and Link 3 were also found in that list.
Several attacks have taken place at financial organizations recently in Bangladesh. Bangladesh Bank faced a heist a few months ago, which caused a big financial loss. Bangladesh police alleged that technicians associated with the SWIFT financial network introduced vulnerabilities into the banking software that made it easier for hackers to infiltrate the systems of Bangladesh Bank. These network weaknesses allowed hackers to carry of $81 million from Bangladesh’s Central Bank in February. Bangladesh Bank said that the Hackers Tried to steal $951 Million. After Bangladesh Bank Incident, some other private banking institutes became victims of similar cyber-attacks as well. These scenarios indicate that cyber security of Bangladesh is in danger.
According to Microsoft Security Intelligence Report 2015 (Volume 20), on computers running real-time security software, most attempts by malware to infect computers are blocked before they succeed. To understand the malware landscape, it’s important to consider infection attempts that are blocked as well as infections that are removed. For this reason, Microsoft uses two different metrics to measure malware prevalence:
Encounter rate is simply the percentage of computers running Microsoft real-time security products that report a malware encounter, whether the infection attempt succeeds or not.
Computers cleaned per mille (thousand), or CCM, is an infection rate metric that is defined as the number of computers cleaned for every 1,000 unique computers executing the Malicious Software Removal Tool (MSRT), a free tool distributed through Microsoft update services that removes more than 200 highly prevalent or serious threats from computers.
Table 1 shows the encounter and infection rate trends for Bangladesh over the last four quarters in 2015, compared to the world as a whole.