If you had a Yahoo account between 2013 and 2016, you are likely eligible for either free credit monitoring or, if you already have monitoring, between $100 and $358 or possibly more. For example, you can ge up to $25,000 to cover any out-of-pocket expenses related to fraud of identity theft as a result or compensation for your time in recovering from the breach. People who subscribed to paid Yaho services may be entitled to additional compensation,
You can contact the administrator or just file a claim at YahooDataBreachSettlement.com and you can learn more about the case and the settlement from this CNET post.