American pharmacy store chain Walgreens has discovered that locking its wares behind lock and key in an apparent effort to stop shoplifters has backfired spectacularly. As Fortune reports, the company has been battling with a major year-over-year decline in earnings and announced it would close an additional 450 stores across the country this year.

Walgreens’ plan to combat increasing theft by locking products up at their stores has hurt sales, the company’s CEO said in a recent earnings call.

Walgreens’ strategy of locking up merchandise — from deodorants to bags of M&M’s — to deter theft has backfired, according to CEO Tim Wentworth. “It is a hand-to-hand combat battle still, unfortunately,

Many retail stores across the Bay Area have turned to locking up commonly stolen items to prevent against shoplifting. But there is a downside to that tactic, Walgreens CEO Tim Wentworth said. “When you lock things up,

Some retailers, like Walgreens, report that locking items behind displays to deter shoplifting may not be effective. Walgreens CEO Tim Wentworth recently described theft prevention in stores as an ongoing and challenging struggle.