NEW YORK (CBSNewYork) — A new campaign launched by the Metropolitan Transit Authority is telling straphangers how to avoid becoming a victim of a robbery on the subway.

Thousands of posters printed in five languages are being installed in subway cars throughout the system as part of an ongoing effort to curb thefts of electronic devices.

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The message: “Don’t be a target of opportunity! Safeguard your stuff.”

“Unfortunately, these items have become tempting targets for thieves and what we are seeking to do with this campaign is remind our customers to take extra care when using them by being watchful of their environment,” NYC Transit President Thomas F. Prendergast said in a statement.

Police say major felonies on subways are up this year compared to last. That’s why the MTA is urging riders to keep cell phones and other electronics out of sight.

“Pay attention to where your valuables are, don’t flash money, don’t show your wallet, don’t go through your wallet,” said Former NYPD detective and security expert Sal Lifrieri. “Don’t make yourself an easier mark.”

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The new poster also focuses on riders who stand or sit near the doors, showing a would-be thief reaching inside the subway car from the platform.

Some of the easiest targets are also people who fall asleep on the subway.

MTA board member Charles Moerdler wants Gov. Andrew Cuomo to appoint a special prosecutor for subway crimes. Moerdler says too many perps who steal or commit assaults are getting off too easy.

For more information about the new campaign, click here.

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