The phrase "a certain amount of security" is correct and usable in written English.
It can be used when discussing the level or degree of security that is considered sufficient or necessary in a particular context.
Example: "In order to proceed with the project, we need to ensure that there is a certain amount of security in place to protect sensitive data."
Alternatives: "a degree of security" or "a level of security".
"People sign a contract and they get a certain amount of security for a certain job.
There is a certain amount of security that some restaurants feel in ordering from non-sustainable sources.
Bellow observed that American society did not pretend to lay great store by high culture but sought only to provide its citizens with "shelter, protection and a certain amount of security against injustice".
"You always need a certain amount of security in your life," he says, "but I think I'd always like to have a bit of insecurity in my life, not to have everything under control.
Level 3 cross-cut shredders produce pieces roughly 3 inches long by 3/16 of an inch wide and offer a certain amount of security, while Level 4 and 5 machines, used by corporations and governments for sensitive documents, produce even smaller pieces.
The trouble is that while a certain amount of security had been brought to large areas of central Iraq and the capital, the other part of the surge package - the restoration of government, governance and effective administration - has not made much progress at all.
In fact, regulators are moving forward on the wording of critical provisions, like exemptions that allow banks to hold a certain amount of securities for customers.
Usually, their shares are restricted from trading for a set period after an initial offering; even when the restriction is lifted, the owners can sell only a certain amount of securities each month.
In exchange for a certain amount of job security, GM was able to offload over $50 billion in health care costs by getting the union to agree to a voluntary employee benefits association (VEBA) that will be run by the UAW itself.
The £25 annual pension gave her a certain amount of financial security.
If the household can present a certain amount of gold as security, mostly in the form of jewelry worn by women, the interest rate is 3% per month (pm); resulting in 36% pa, if the interest is paid regularly each month.
