GERMANTOWN, Md. – Parents are demanding answers from officials in Montgomery County who leaked sensitive student data on 16 kindergartners and 145 fourth-graders during a presentation at an education conference.

The lapse was made by the chief technology officer for Montgomery County schools during a conference in Missouri several year ago, when he used a PowerPoint presentation with real pictures, names and phone numbers of the district’s kindergartners. The presentation also featured names, student ID numbers and reading scores for 145 fourth graders, The Washington Post reports.

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Parents were largely unaware of the issue until recently, when the information was presented again at a different conference in Alabama and organizers uploaded the PowerPoint to a government website.

“The inadvertent publication of the sensitive data has left some parents questioning how such information could be mishandled and what safeguards are in place to prevent it from happening again,” the Post reports.

“Montgomery school leaders say it was a one-time misstep that was corrected.”

Chief technology officer Sherwin Collette wrote a letter to parents this spring, apologizing for the 2011 presentation that was “not redacted consistent with our practices,” and visited with parents of students affected by the breech.

“I take responsibility,” he told parents, adding that he worked to remove the information online once he became aware of it, according to the Post. “The assumption was it wasn’t real data.”

But many parents don’t think Collette’s apology, and assurances from district officials that it won’t happen again, is quite good enough.

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“I heard a lot of good intentions, but I want to see actions,” Olga Ney, parent of an affected fourth-grader, told the Post.

Another parent of a kindergartner, Susan Mordan, doesn’t understand how a room full of administrators at a school conference didn’t understand that the student data shouldn’t be shared.

“No one gasped and said, ‘That shouldn’t be up there,’” Mordan said.

“My concerns is that people who were in charge of making a good decision on behalf of my child didn’t make a good decision,” she told the Post.

“I feel like it’s a big deal, and (Montgomery County Public Schools) isn’t taking it like it’s a big deal,” parent Amanda Graver said. “They seem to be annoyed with parents for being concerned.”

Several readers online seemed to agree with Graver and Mordan, and are calling for district officials to take more drastic actions.

“A ‘mistake’ is when you put your socks on inside out. This was not a mistake …,” RunAround posted to The Washington Post comments. “Colette ruins all over the country (and even to London, England) giving presentations about how wonderful MCPS is. While it was wrong that these students’ personal info was put on the internet, it was equally wrong for him to use student names, addresses, photos, and reading scores at a conference without the personally identifiable information being redacted.

“The fact that such a high level MCPS administrator doesn’t understand or apparently even know about FERPA is shocking. No amount of excuses will suffice. He needs another job where he isn’t putting student personal information at risk,” RunAround wrote.

“Children’s personal information including their reading scores were publicly shared? This is unacceptable. If someone hacked in and got this information there would be criminal charges,” Penelope Landis added. “This is a huge huge deal. What in the world where these slides doing in existence? Is it one person’s mistake? Is it a problem in the system? It speaks volumes to the challenges to privacy children face without proper controls.”

The episode also undoubtedly raises concerns about future data leaks, especially now that schools are required to collect an unprecedented amount of information on students as part of the national Common Core standards – information that’s then forwarded to the federal government.