By Raphael Satter WASHINGTON (Reuters) – Okta said on Wednesday hundreds of its customers may have been affected by a security breach involving hacking group Lapsus$, amid criticism of the digital authentication firm’s slow response to the intrusion that knocked its shares down about 11 percent. The breach sparked concern because the cyber extortion gang had posted what appeared to be internal screenshots from within the organization’s network roughly a day ago. Okta’s Chief Security Officer David Bradbury said in a series of blog posts that the “maximum potential impact” was to 366 customers …