VeriSign has won a multiyear contract to provide managed security services (MSS) for US Bancorp.
VeriSign will be managing more than 100 intrusion detection security devices owned by US Bancorp.
The deal is one of the largest managed security services wins for the company since it landed a deal to manage network security devices for Merrill Lynch last April, said Ben Golub, senior vice-president of marketing and corporate affairs at VeriSign.
US Bancorp is the eighth largest financial services holding company in the US. VeriSign will manage the company's host and network intrusion detection systems.
The company will take the large volume of data generated by those systems, analysing it and comparing it with data generated by other network security systems owned by Merrill.
VeriSign was awarded the contract in November, beating competition from four other companies, including Guardent, which VeriSign subsequently purchased.
VeriSign and US Bancorp have been conducting a pilot programme since November.
VeriSign already provides US Bancorp with digital certificates to secure internet-based customer transactions.
Paul Roberts writes for IDG News Service