Cache memory
A cache is a memory location that is used to store data
temporarily, such as passwords and cookies. If you have
tried to access or have accessed confidential information
requiring passwords, empty the cache after each use. A
cookie is data that a site saves in the cache memory of your
phone. Cookies are saved until you clear the cache memory.
To clear the cache while browsing, select Options > Other
options > Clear the cache. To allow or prevent the phone
from receiving cookies, while browsing select Options >
Other options > Security > Cookie settings; or in the
standby mode select Menu > Web > Settings >
Security settings > Cookies.