If you’ve ever tried to check your credit and come away discouraged because you didn’t have a credit report or it didn’t have enough data to generate a credit score, you might be looking for a shortcut to building credit.
Becoming an authorized user on someone else’s credit card — often called piggybacking because you’re riding on the strength of the primary cardholder’s good credit — might help.
Credit piggybacking is likelier to be useful if your problem is thin credit rather than damaged credit. (If you’ve had problems staying on top of bills, check into restoring your credit instead of piggybacking.)v
https://www.nerdwallet.com/blog/finance/credit-piggybacking-can-it-help-your-credit-score/
