San Francisco-based Internet security provider Black Lotus said Monday that it has raised $6M in a debt financing round, for the company's security services, which are aimed at shutting down distributed denial of service (DDoS) attacks. Black Lotus said the debt financing came from East West Bank. Terms of that debt were not announced. Black Lotus is owned by Industry Capital, most recently raising $3.5M in October. Black Lotus is led by Arman Khalili.