The National Computer and Cybercrimes Coordination Committee had warned of impending cyber attack on critical infrastructure that would disrupt essential services.
In its communication on Monday, the NC4 asked the Kenya Education Network Trust (KENET) to advise research and education institutions to take mitigation measures.
"It is recommended that KENET informs all research and education institutions in Kenya to implement the necessary cybersecurity measures and to share with director NC4 on any malicious traffic and incidents," NC4 director Evans Ombati said in a letter addressed to KENET director Prof Meoli Karshorda.
Ombati said the NC4 had established a hike in cybersecurity threats targeted at critical information infrastructures in Kenya particularly in the telecommunications, banking and educations services.
"These traffic constitute Distributed Denial of Service (DDoS) attack," he said.
On Thursday, several service oriented installations suffered disruptions following a cyber attack that disrupted normal service operations for hours.
ICT Cabinet Secretary Eliud Owalo confirmed the attack but said no data had been compromised.
"There was an attack, we are addressing that...they tried jamming the system by making more than ordinary request into the system," he said during a morning show on Spice FM in reference to government's service portal, eCitizen.
"We addressed it. No data has been accessed, no data has been lost."
The Kenya Power and Lighting Company said its system had suffered a network breakdown resulting in the unavailability of some services.
The power utility firm said services affected included the purchase of prepaid tokens using the USSD.
"We are experiencing a system hitch due to a network breakdown from our service provider. Consequently, some of our services such as the purchase of prepaid tokens through M-Pesa and USSD Code *977# are unavailable," it said.
It, however, said customers could still buy tokens in their banking halls, via Airtel Money and authorised banks.
Kenya Railways also said they were experiencing a system hitch which affected purchase of tickets.
The National, Transport and Safety Authority said driver testing and vehicle licensing services were also down.
Other services that were affected included bank to Mpesa transfer, M-shwari and KCB Mpesa, Mpesa App and My Safaricom.
