Activist investor Barington Capital Group is pushing Victoria's Secret to alter its board and end a recently adopted "poison pill" plan, according to a letter to the lingerie maker's shareholders on Monday.

Activist investor Barington Capital Group has built a stake in Victoria’s Secret and believes the lingerie retailer hasn’t lived up to its full potential.The investor’s arrival adds to the pressure that Victoria’s Secret is already facing from another big disgruntled shareholder and after a recent security incident caused the company to temporarily shut down its website.

Barington Capital urged Victoria's Secret to replace its board with directors experienced in brand revitalization, criticizing CEO Hillary Super's leadership strategy.