To make sure your assets are as private as possible when withdrawing, check the Privacy Indicator.
The Privacy Indicator measures your deposit's privacy strength during the withdrawal process and is based on the following criteria:
- Length of time other users' assets have been locked
- Length of time your asset has been locked
For your deposit to be the most secure, it needs to be withdrawn at the period where an attacker would least likely be expecting you to withdraw.
The algorithm to calculate is quite technical, but is based on Arvix's paper on methods that can be used to deanonymize users. Using the Privacy Level Indicator makes it much harder to deanonymize your transactions.