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Hi, we’re Pui-Wing Tam and Jim Kerstetter, tech editors filling in for Jamie Condliffe while he’s on vacation. Here’s a look at the week’s tech news:

Facebook has connected the world, which brings many benefits for communication and the dissemination of information. But there’s a downside that hasn’t gotten much attention until recently: the love scams that proliferate on the social network.

In these scams, some Facebook users — often young men in Nigeria — steal the digital photos and identities of Americans in the Marines, Army, Navy and Air Force. Posing as the service members, the scammers sweet talk vulnerable and lonely women, forming an emotional connection — and eventually asking for their money.

Our colleague Jack Nicas followed one military love hoax. He found Renee Holland, who had an online friendship with a person she thought was an American soldier named Michael Chris. She sent Mr. Chris $26,000 to $30,000, much of the life savings that she and her husband had socked away.