Technophoria: Data Security Is a Classroom Worry, Too

Edmodo’s free software allows teachers to set up virtual classrooms where they can post homework assignments, give quizzes and use third-party apps to complement lessons. Students can create individual profiles, including their photograph and other details, within their teacher’s class and post comments to a communal class feed.

Mr. Porterfield, an engineer at Cisco Systems, examined Edmodo’s data security practices by registering himself on the site as a fictional home-school teacher. As he went about creating imaginary students — complete with cartoon avatars — for his fictitious class, however, he noticed that Edmodo did not encrypt user sessions using a standard encryption protocol called Secure Sockets Layer.

That cryptography system, called SSL for short and used by many online banking and e-commerce sites, protects people who log in to sites over an open Wi-Fi network — like the kind offered by many coffee shops — from strangers who might be using snooping software on the same network. (An “https” at the beginning of a URL indicates SSL encryption.)

Without that encryption, Mr. Porterfield says, he worried about the potential for a stranger to gain access to student information, and thus hypothetically be able to identify or even contact students.

To test this hypothesis, he used a computer on his home Wi-Fi network to log in as an imaginary student; then, using another computer, he installed free security auditing software, called Cookie Cadger, to spy on the student’s online activities. Though the risk of this happening with actual students seemed small — Edmodo and other companies say they have no evidence that this kind of breach has occurred — he contacted his school district about his concerns.

“There’s a lot of contextual information you could use to gain trust, to make yourself seem familiar to the child,” he says. “As a parent, that’s the scariest thing.”

In response to an inquiry from me last week, Sara Mandel, a spokeswoman for Edmodo, said the service provided “a safe alternative to open, consumer social networking sites” because students could participate only in groups created by their teachers and because teachers decided whether students could send private messages to one another.

She added that “any school that chooses” had been able to use a completely encrypted version of the site since 2011 and that the company “is working to ensure that all of our users are using an SSL-encrypted version.”

SCHOOL administrators and teachers said they liked these online learning systems because they could control the information that students might share.

“Kids can’t talk to each other. They can only speak to the group,” says Heather Peretz, a special-education teacher at Great Neck South Middle School in Great Neck, N.Y., who uses Edmodo in her English class. “It helps them learn to be good digital citizens so they are not making inappropriate posts.”

But as school districts rush to adopt learning-management systems, some privacy advocates warn that educators may be embracing the bells and whistles before mastering fundamentals like data security and privacy.

Although a federal law protecting children’s online privacy requires online services to take reasonable measures to secure personal information — like names and e-mail addresses — collected from children under 13, the law doesn’t specifically require SSL encryption. Yet school districts often issue only general notices about classroom technology, leaving many parents unaware of the practices of the online learning systems their children use. Moreover, schools often require online participation so students can gain access to course assignments or collaborate on projects.

“What we are finding with this type of database is that parents are uninformed,” says Khaliah Barnes, a lawyer at the Electronic Privacy Information Center. “Most don’t understand how the technology works.”

Online security experts have long warned consumers about unencrypted Web sites that collect personal details. That is because on open Wi-Fi networks, hackers using simple software programs can see and copy the unique code, called a session cookie, that servers issue to authenticate a person who has logged into a Web site. By replicating that cookie, a hacker can acquire the same privileges, like the ability to edit a profile or grade a quiz, of the authenticated user for that session.

For Homebound Students, a Robot Proxy in the Classroom

All without leaving her living room.

Born with a chronic heart disorder that weakened her immune system and made attending school risky, Lexie, 9, was tutored at her home in Sumter for years. But this spring, her family began experimenting with an alternative — a camera-and-Internet-enabled robot that swivels around the classroom and streams two-way video between her school and house.

“She immediately loved the robot,” her mother, Cristi Kinder, said, of the device, called a VGo, which Lexie controls from her home computer. Lexie dressed up the robot, which is about the height of her third-grade classmates, in pink ribbons and a tutu, and she renamed it Princess VGo.

A small but quickly growing number of chronically ill students — at least 50 across the country — now attend school virtually with what are called “remote presence robots.” The technology is still expensive (a VGo costs $6,000, in addition to $1,200 a year for maintenance and other costs) and imperfect (when the robot loses its Internet connection, it goes lifeless and must be pushed).

And despite the fantasies of Lexie’s classmates — “I want a robot so I can stay in bed all day,” one 8-year-old said — such robots are mostly last resorts for children restricted to their houses or hospital rooms.

As Web-based video becomes more prominent as a teaching tool, special education advocates say these robots are valuable alternatives to tutoring. About 23,000 students across the country are homebound or hospitalized each school year. They might not otherwise interact with classmates or could fall farther behind academically, advocates say.

“Soon, these robots should be the price of an inexpensive laptop,” said Maja Mataric, a computer science professor at the University of Southern California, who studies how robots help children with learning disabilities. “They should make access to education much easier for students who are convalescing.”

Dr. Mataric’s research focuses on using robots to teach social cues to children with autism. Children adapt far more quickly to the technology than adults and treat the machine like another classmate, she says. During a fire drill at one Texas school, students were so worried about the VGo that they insisted on escorting it out of the building to safety.

The VGo is four feet tall, weighs 18 pounds and is shaped like a white chess pawn, with a video screen on its face. Lexie controls its movement with her computer mouse. Video of the classroom at Alice Drive Elementary School appears on her computer screen, and video of her face appears on the robot’s display screen. The robot and Lexie’s computer support two-way voice communication, and Lexie can flash her VGo’s lights to get the teacher’s attention.

Since 2007, VGo, based in Nashua, N.H., has been selling the robots to company executives who want to keep an eye on employees while traveling and to doctors, who use it to “visit” patients at different hospitals. Two years ago, it realized schools might be a new market. The first classroom model was sold to a school in Knox City, Tex., to be used by a child with an immune deficiency.

The company’s big break came during this year’s Super Bowl. Verizon, which provides the LTE wireless connection for the robot, ran a commercial about a student using VGo. Before the ad, VGo had sold about 10 robots to schools. Since then, they have sold about 40.

Most robots are bought with state or local money marked for disabled students, but at some schools, parents have held fund-raising events or bought the robot themselves. In Huntsville, Tex., education officials bought five VGos last year and are planning for five more next year. They named the program Morgan’s Angels after a student with cancer who missed school for six months but was able to attend remotely with the robot’s help.

For students like Connor Flanagan, 14, of Tyngsborough, Mass., the main benefit has been social interaction. He does not go to school because of a rare lung condition, but he has stayed in touch with friends while awaiting a transplant.

“He walks down the hallway kind of like everybody else,” said his mother, Jennifer Flanagan. “The kids — aside the fact that it was a robot — they treated him like Connor. He’d roll through the room, and you’d hear ‘Hey, Connor. Hi, Connor.’ ”

Parents have raised privacy concerns about children using cameras in class. But Ned Semonite, the company’s vice president for marketing and product management, said it was no different from a smartphone or Web camera.

The greatest logistical challenge is maintaining an Internet connection. Lori Gearhart, of Colesburg, Iowa, said her grandson, Aidan Bailey, 9, was able to use the robot after his lung collapsed last year. His science class was studying insects, and Aidan kept a cocoon in his hospital room. He would show classmates videos of its transformation into a butterfly.

But other times, she said, the robot, which was bought through a community fund-raising effort for Aidan, could not receive enough of a wireless signal. “It ends up where the classmates have to carry the robot down the hall,” she said.

In Sumter, Shawn Hagerty, the director of special education programs for the school district, bought a robot after seeing Verizon’s commercial. The teachers set aside a day when students could meet and play with the robot.

Lexie’s robot has its own desk and charging station against a wall. Ivey Smith, her teacher, said the children had embraced the idea of having a robot in the class and screamed with excitement every time it turned on.

“I was concerned they would be distracted,” she said. “But within a couple days, they acted like it had always been here. They feel special that there’s a robot in their class.”

On a recent day, Ms. Smith’s class was learning about synonyms. She asked every student to think of a word with the same meaning as the word “glassy.” A moment later, the robot’s pink and green lights blinked, and the class shouted, “Lexie!”

“My word is ‘shiny,’ ” she said through the video screen.

“Yes, very good,” the teacher replied. “Good answer.”

Between classes, Lexie guides the robot down the hallway. At day’s end, she rolls it to a charging station. On the way out of class, one child, Hazel Grace Kolb, waved goodbye to the machine.

“See you tomorrow, robot,” she said.