"ramp up security" is a correct and usable phrase in written English.
You can use this phrase when talking about increasing the amount of security or protective measures used to protect something or someone. Example: "With the upcoming election, the government decided to ramp up security in order to protect the voting process."
Governments are expected to ramp up security spending in the wake of the attacks in Paris.
There was no attempt to ramp up security before the attack, Ritchie had told the inquest.
Sixteen children have been killed and dozens injured since late March, forcing the government to ramp up security.
The hard-line position that we can ramp up security and then expel anyone left behind is a minority position even within the GOP.
Road Runners officials have been working with the New York Police Department to ramp up security, including a new, stringent bag check procedure, additional police officers along the course, secure runners-only areas and family reunion zones.
Does it outwardly maintain the "Keep Calm and Carry On" ethos while temporarily stepping up security at strategic sites, or does it begin to close off vulnerable public spaces and ramp up security in more permanent ways?
The Mumbai police, meanwhile, ramped up security for the actor.
U.N. forces have ramped up security efforts in the weeks leading up to elections.
University officials ramped up security after the explosion Wednesday, adding city and state police officers, bomb-sniffing dogs and bag screening at the gates of Old Campus.
After the September 11 attacks, the US federal aviation authority (FAA) dramatically ramped up security on planes, and increased regulations around cockpit safety.
Jordan, on the other hand, which ramped up security after the 2005 Amman bombings and has widespread public support for anti-terrorist measures, has remained unpopular.
