Several companies have been duped by a tax-season phishing scam that has compromised employees' personal information.

FOX's Gurnal Scott has the story:

The scam uses emails, said to come from top corporate officials to convince affected companies to send out W-2's, exposing personal information. The social security, income data and addresses could be used to file fake tax documents.

 Hundreds of companies, including Snapchat, appear to have been targeted. Some employers are trying to protect workers by offering free credit monitoring. It's not known how many people were affected by the deception. 

Online security experts say phishing scams often occur around holidays and tax time and use corporate logos for a convincing look.

Gurnal Scott, FOX News.