LastPass gives you the ability to grant one-time access to your vault (including all of your passwords, secure notes, form fill items, and other information) to one or more designated LastPass users, and specify an access delay. This means that when a designated person attempts to access your information, this person would have to wait a specified time period of your choosing (e.g., 3 hours) during which you are notified and have the ability to decline the requested access. If you do not deny the request within the specified time period, the emergency access user will be able to access your vault.
Feature availability may vary depending on your account type.
Emergency access general overview
Please note that being invited to have emergency access to someone's vault is not the same as being granted access to their entire LastPass account. That is, if emergency access has been approved by the LastPass account owner, then the result will be that the emergency access user will have a new folder in their vault containing all of the vault items of the LastPass account owner.
The process begins with an invitation, then after someone is invited to have access, in order to gain access, they must then request it, at which point the account owner has time to review the access request and deny it if they wish.
Note: Emergency Access is a feature only available to LastPass Premium or LastPass Families users. If you are not a Premium user but you added an emergency contact before this became a Premium feature, the contact will continue to have access. However, you cannot add additional emergency contacts unless you upgrade to a Premium account.