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Phones and computers can be lost or stolen, he said. But more importantly, nothing on the Internet is private. During his 90-minute workshop, Guerry shared how to avoid a "self-inflicted digital issue."
Don't post anything online you wouldn't want everyone to see, even if you think it's a secure or a private site, he said, mentioning popular sites like Photobucket.com, Facebook.com and MySpace.com.
Only secure sites, such as banking or shopping sites, will display an "s" after the http and will also feature a picture of a lock in the browser. Nothing else should be considered secure, he said.
Once a digital image is on a computer or a phone, it's there forever, even if it's been deleted, he said. Because of advances in recovery software, photos will never be permanently deleted from memory cards on cameras or cell phones.
The Internet is not the steel door people think it is, he said. There's the threat of a photo or personal information being used on a website without your consent or knowledge. He used an example of two parents who used an online photography site to upload personal photos of themselves, thinking it was private and available only to them. They learned the account had been hacked and their photos stolen when their 18-year-old son found their personal photos on an adult site.
People can take images and use them without consent or hack accounts and use information, including photos, to blackmail you, Guerry said.