"Issues of DNS cache poisoning are common in East Africa. ISPs do not take security seriously, which makes it easier for malicious hackers," said Tyrus Kamau, a network security consultant.

John Gichuki, a security expert who has helped set up security safeguards for companies in East Africa, says that the level of security depends on the security policies set by the information security department in an organization.

"ISPs should have security assessments done; physical and operational security; they should be in a position to monitor traffic going through their routers and servers," said Gichuki.