LC Phone Fraud Protect 🔐

1. Card Limits (Agency and Location)
Use Case:
 A lot of times a new location/sub-account uses multiple cards for testing and filling up the balance to spam the system.
Changes:
 An agency/sub-account can add a maximum of 3 cards in their lifetime with a maximum daily try of 5 times(both success and failure included). In case they want to add a new card they will need to reach out to our support team.
2. Ramp-Up Model v2 (Sub-Account Level)
Use Case:
 We want any new sub-account to go over a ramp model similar to email warmup we want to implement a messaging ramp-up.
Changes:
 Starting 1st Feb all the sub-accounts created under LC Phone will have an 8-level ramp instead of the 7-day ramp with a lower limit. Below is the table which will give you a detailed idea of the ramp:
Level 1 - 100
Level 2 - 250
Level 3 - 500
Level 4 - 750
Level 5 - 1500
Level 6 - 2250
Level 7 - 3000
Level 8 - 3000+
All the existing locations created before 1st Feb will continue to be on the older ramp model.
The catch here is that this ramp will not start on the signup date and will start on the day when the first SMS successful message is sent.
Any location that hits the daily message limit in their respective levels will be temporarily restricted for the next 24 hours.
The location will only move to the next level daily ramp when they hit the current level limit meaning if they are on L1, they will move to L2 only when they send 100 or more messages in a given day.
Previously we had an option for the agency to change the SMS limit within the ramp or post ramp period. That capability has been taken away.
Previously 1 to 1 messages, Missed Call Text back messages were not considered as part of the day’s total message, this will be counted henceforth.
Previously, when a location was restricted temporarily the One on One messages used to be allowed, we have taken that capability away.
3. International Messaging Restrictions
Use Case:
 We have seen locations sign up and buy a number that does not need a reg bundle or number registration. Then they send out a blast to international numbers.
Changes:
 We will only allow sending messages when the country code of from and to numbers is the same to avoid any international traffic and reduce the risk of fraud. 
Note: 
This will not apply to US numbers, US numbers will be able to send out messages to other countries as they have A2P and TF Registrations processes in place(very less likely that someone will fill this).
This is partially applicable to Canada numbers, Canada numbers without registration can only be sent to the US/Canada. If they want to send it out internationally then they will need to do the A2P Registration first. TF number Verifications are already mandatory in the system.
4. Content Filtering
Use Case:
 We sometimes get flagged when our customers send disallowed content messages, we want these messages to not go to Twilio.
Changes:
 We have implemented a model to identify these on our end to avoid the network being affected due to these messages and avoid any impacts on the good messaging campaigns.