Every piece of data you store physically or digitally is at risk of being stolen via one of the many methods of identity theft.
Account takeover: Someone who has obtained your login information can take control of your accounts to make fraudulent purchases and money transfers and even apply for loans.
Medical identity theft: When a stranger poses as you to obtain medical assistance or pay bills, you could end up being charged for a someone else's medical procedures and prescriptions
Credit card fraud: If an unauthorized transaction shows up on your credit or debit card statement, a stranger may be using your information to make unauthorized purchases. This can negatively affect your credit score and lead to significant financial loss.