The Obama administration official who heads the agency responsible for maintaining the country’s nuclear stockpile as well as securing “loose nukes” worldwide is the latest victim of  “Guccifer.”

Neile Miller, acting administrator of the National Nuclear Security Administration (NNSA) recently had her Facebook account breached by the notorious hacker, who also apparently illegally accessed one of Miller’s personal e-mail accounts.

In 2010, Obama nominated Miller, 55, for the principal deputy administrator’s post at NNSA (she was confirmed by the U.S. Senate in August 2010). Following the departure of the agency’s administrator in January, Miller stepped up into the post of acting administrator.

Miller, who has top secret security clearances, runs an agency with a broad portfolio of nuclear-related responsibilities, including managing and securing the nation’s nuclear weapons and keeping weapons of mass destruction “out of the hands of state and non-state actors.” The NNSA has a $12 billion annual budget, 2500 employees, and 35,000 other contract workers.

Based on screen grabs sent to TSG by “Guccifer,” it does not appear that the hacker accessed any confidential or sensitive material from Miller’s accounts. Though the online outlaw did make sure to swipe photos of Miller with Obama at a White House meeting last year and--as seen above--a shot of her posing at the president’s right shoulder in the Oval Office. The hacker added the oval “Guccifer” logo to the photo.

Through an NNSA spokesperson, Miller--who last month announced that she was leaving her government post effective June 14--declined to comment beyond noting that “these were personal accounts and no classified information was accessed.”

While it is unclear how Miller was hacked, she was likely an attractive target for “Guccifer” due to her governmental position. The hacker has recently broken into the personal e-mail account of the Obama administration official who heads the National Intelligence Council and the appointee who runs the Pension Benefit Guaranty Corporation.

Several months into an online strafing campaign, “Guccifer” appears unconcerned about the law enforcement effort to capture him/her/them. “My end is far,” the hacker noted in an e-mail “Remember this is another chapter of the game.”