The security deposit you put into this account will range from one to three months' rent, depending on the terms of your lease contract. The money in the account will earn interest, which you can withdraw.
The security deposit account will be held jointly by you and the lessor (the rental agency or property owner in most cases). The account will be blocked for the entire term of the lease, although you can withdraw the interest earned on the account. The funds will be released to you when the lease expires, unless the lessor claims all or part of it for unpaid rent or damage to the property.