Can I use multifactor authentication with the iCab mobile app?
None of the multifactor authentication options are currently supported on iCab mobile browser.
If you have multifactor authentication enabled for your LastPass account, and have restricted mobile login, you’ll receive an error that the device is restricted.
You will need to go to your LastPass Icon > My LastPass Vault > Account Settings > Multifactor Authentication, ensure that you have permitted mobile access with your multifactor authentication method. Then in the "Mobile Devices" tab ensure that you uncheck the "restrict" option, if it was previously checked, then login again on the iCab mobile browser.