State lawmakers passed the measure by earlier this month. Now, Gov. Martin O'Malley just has to sign the bill.

Although employers have been checking applicants' for years, companies lately have been demanding access to private social media activity as well. Facebook drew attention to this issue in March, vowing to work with lawmakers or take legal action to protect users' privacy.

“If you are a Facebook user, , let anyone access your account, or do anything that might jeopardize the security of your account or violate the privacy of your friends,” Facebook's chief privacy officer, Erin Egan, wrote in a blog post.

Since then, several states have proposed legislation similar to the bill that passed in Maryland. According to the National Conference of State Legislatures, nine other states have considered laws against . However, no other measures have passed out of committee in their respective legislatures.