The White House on Monday said it would do what most homeowners practice to secure their property: Lock the front door.

“After Friday night’s incident, when the door is not in use, it will be secured,” said White House press secretary Josh Earnest, clarifying that officials would, in fact, lock the door.

An Iraq war veteran armed with a knife managed to scale the outer fence of the White House Friday night and make it through the North Portico doors, near the residence of the first family.

Earnest on Monday said the Secret Service had launched an investigation on how to bolster security around 1600 Pennsylvania Ave. There was a heightened security presence outside the White House on Monday.

Earnest said officials were exploring whether to boost staffing levels and move security personnel to other parts of the White House.

“Providing security at the White House is a complicated business,” Earnest said, reminding reporters that thousands of tourists visit the president’s residence every year.

When asked about the president’s response to the security breach, Earnest said Obama was “obviously concerned.”

Omar Gonzalez was charged with unlawfully entering a restricted government building while carrying a deadly weapon. Gonzalez is expected to appear in federal court later Monday.