After disclosing last week that 143 million U.S. consumers may have had their personal information compromised during a cyberattack by criminal hackers, credit-reporting agency Equifax is already facing at least 23 proposed class-action lawsuits. The company said the attacks took place from mid-May to July 2017, and the breach involved names, addresses, birthdays, and Social Security numbers, as well as some driver's license numbers.