Chico Police issuing a warning to be alert to phone scams. One recent scam used a technique known as "spoofing". That's where the number you see on your caller ID is not the real number calling. It's to hide a scammer's identity. One spoofing case had the scammers using a local business number to call people and say their bank account had been frozen. They wanted that person's account information. Police say always be suspicious and never give personal information over the phone.