My bank had no alternative other than using a type of technology which requires new users to verify phone number prior to accessing their account and there was no better company than TeleSign for that service!  Ever since we converted to banking online, this verify phone number technology has kept our current customers’ information safe on the database, and it keeps unwanted hackers and thieves out of our site.   We knew that this type of security was a must for our cherished customers of the bank, and no phone verification provider expressed any sort of complaints in the extra layer of security we put in place.  Why would they because we’re keeping them safe, right?  After we looked into all kinds of telephone number verification providers available online we ended up using TeleSign.  All they do is send a unique password to a new user creating an account with us or when they access their account online for the first time on a new computer.  TeleSign sends the password and verifies confirmation of the password entered by the user in order to grant them access to the site!  They also detect fraudulent information, prevent VOIP numbers from authenticating an account, and they do all the work while we get all the credit of keeping our bank free of online criminals and hackers!  We have not experienced any drawbacks or complaints with our verify phone number service from TeleSign and we’re all gracious for the additional security techniques they provide for the website.