Deleting and Destroying Data Forever

Home
>
Personal Technology
>
Deleting and Destroying Data Forever

Deleting and Destroying Data Forever

Peoples' private information needs to stay private, even after it has been erased. Wait a minute, after it's been erased?

Have you ever given away an old computer or diskette, deleting the files off it, or giving it a quick format to make sure your information is gone? That might not be enough to stop some one from easily recovering the information!

When you delete a file, normally the operating system and file system say, "ok the file is gone!" but at the physical level the information is still there. If you were to run a recovery program you would be able to see information that you have deleted.

In order to get rid of old data you actually need to write over that same physical location on the hard drive several times to make sure it is gone, or at least much harder to recover. The standard for most government agencies is to do a seven pass wipe. That means that the hard drive will be written over with various sequences and random data seven time to be considered clean.

There are many end user applications that can assist you by wiping data as you delete it multiple times, however it will slow down your system significantly if you are deleting large amounts of data. For the average home user I wouldn't suggest wiping your deleted items more than three or four times, unless you are really worried about the information being recovered.

If you plan on wiping away the entire computer there is some applications that you can use that run from a boot diskette that will allow you to wipe the entire hard drive from start to finish. This process takes several hours, usually left as an "all nighter." (One of those programs you start before you go to sleep!)

You may be thinking, this is great for writeable media, but what about one-write media, such as CD's, DVD's and things like that? Stores sell pretty cool CD shredders, or machines that will indent the media with little holes or pock marks that make it unreadable. But my personal favorite (Do not do this, it's probably dangerous, and will be bad for the unit) is to put CD/DVD media in the microwave for two seconds. It makes the media in to this really cool spider web sort of cracked design that I like to hang on my pin board. As I mentioned, you shouldn't do this method, it's probably really bad for the microwave and might send some bad wave lengths through the room in to your brain, and it will make your microwave smell bad. You have been warned.

The final problem you might have is with hard drives that have failed, often they die at a random time, with whatever information you had on it. You don't just want to throw it in the trash, just in case someone gets creative and tries to recover the information. I highly suggest that you either disassemble it nicely with torques screw drivers (most of them use torques), and trash the plates inside, or be create in how to smash the entire drive until it's broken and flat. If you do decide to dissect it gracefully, the magnets inside are super strong and are great for hanging calendars and heavier items from metal cabinets.

Data security and privacy is such an important topic, always treat your media appropriately as to reduce your risk of passing on private information mistakenly!

Ken Dennis
http://KenDennis-RSS.homeip.net

In The News:

Yahoo! News: Top Stories

UAW to renegotiate labor terms, suspend jobs bank (AP)

AP - The United Auto Workers said Wednesday it is willing to change its contracts with U.S. automakers and accept delayed payments of billions of dollars to a union-run health care trust to do its part to help the struggling companies secure $34 billion in government loans.

Bombs found in Mumbai train station a week later (AP)

AP - Police searching a mound of baggage abandoned amid the carnage of the attack on Mumbai's main train station found two bombs Wednesday Â— nearly a week after they were left there by gunmen Â— in a stunning new example of the botched security that has become a major issue in India since the three-day siege.

Palin files late disclosure for free 2007 trips (AP)

AP - Gov. Sarah Palin has added to her financial disclosure forms two free trips that she took nearly two years ago but failed to report. Palin, who was Republican presidential candidate John McCain's running mate, made the disclosures last month, but after Election Day when she and McCain lost to Barack Obama and Joe Biden. The trips were first revealed in a story by The Associated Press in October.

Conservatives form rival group to Episcopal Church (AP)

AP - Theological conservatives upset by liberal views of U.S. Episcopalians and Canadian Anglicans formed a rival North American province Wednesday, in a long-developing rift over the Bible that erupted when Episcopalians consecrated the first openly gay bishop.

Cruise passengers describe 'cheeky' pirate attack (AP)

AP - Ordered to get inside and stay down, Oregon tourist Clyde Thornburg heard the pirates' rifle shots hit the side of the luxury cruise liner Â— "Pop! Pop! Pop!" Â— then felt the ship speed up to escape.

Police arrest aunt in Calif. shackled teen case (AP)

AP - The aunt and one-time guardian of an emaciated and shackled 17-year-old has been arrested, as police tried to determine how she knew the couple accused of holding the teen against his will for nearly a year. Caren Ramirez was arrested Tuesday in Berkeley, a day after the boy walked into a gym and begged managers to hide him. He was covered in soot, had a chain on his foot and was wearing only boxer briefs.

Study illuminates star explosion from 16th century (AP)

AP - More than 400 years after Danish astronomer Tycho Brahe challenged established wisdom about the heavens by analyzing a strange new light in the sky, scientists say they've finally nailed down just what he saw.

Bond denied for suspect in Hudson family killings (AP)

AP - A prosecutor alleged Wednesday that Jennifer Hudson's brother-in-law killed three family members because he was angry his estranged wife Â— the singer's sister Â— was dating another man.

The one that didn't get away yields long-lost ring (AP)

AP - The one that didn't get away held an unlikely surprise for a Texas man. The blue-stoned class ring of Joe Richardson, engraved with his name, turned up inside an 8-pound bass 21 years after he lost it while fishing on Lake Sam Rayburn.

Red Sox give AL MVP Pedroia a 6-year, $40.5M deal (AP)

AP - Dustin Pedroia has a Rookie of the Year award, an MVP, a Gold Glove and Silver Slugger and, of course, a World Series ring. And now he's got the big-bucks contract befitting one of the most decorated young players in baseball. The Red Sox second baseman, who earned $457,000 last season while winning the AL Most Valuable Player award, agreed Wednesday to a $40.5 million, six-year contract that could keep in Boston through at least 2014.

Obama names Richardson as Commerce Secretary (Reuters)

Reuters - President-elect Barack Obama said on Wednesday struggling automakers have put forward a "more serious" restructuring proposal to Congress but withheld judgment on the plans until hearings are held.

Recession fears deepen, rate cuts on horizon (Reuters)

Reuters - Record declines in the vast U.S. and European service sectors and more grim U.S. employment news on Wednesday sparked fear of an economic "free fall," setting up another round of aggressive interest rate cuts.

Rice pushes Pakistan, seeks to curb India response (Reuters)

Reuters - U.S. Secretary of State Condoleezza Rice pressed Pakistan to cooperate fully in the probe into the Mumbai attacks but she also warned India against any action that could stoke regional conflict.

All options on table as Congress reviews autos bailout (Reuters)

Reuters - All options were on the table on Wednesday as congressional committees scrutinized auto company restructuring proposals and an urgent appeal for $34 billion in aid ahead of make-or-break hearings.

Senate Democrats will pack plenty of muscle (Reuters)

Reuters - Senate Democrats will be able to do plenty over the next two years -- despite falling just short of their goal of winning a majority big enough to end Republican procedural roadblocks.

Paulson said weighing bailout's next $350 billion (Reuters)

Reuters - Treasury Secretary Henry Paulson is weighing whether to ask Congress for the remaining $350 billion of the financial bailout fund, with White House aides approaching President-elect Barack Obama's transition team about the idea, an Obama aide said on Wednesday.

Ex-WorldCom chief Ebbers seeks clemency from Bush (Reuters)

Reuters - Imprisoned former WorldCom Inc chief Bernard Ebbers has joined the list of high-profile corporate defendants petitioning for clemency in the final days of President George W. Bush's term in office.

U.S.-led coalition in Iraq dwindles as allies leave (Reuters)

Reuters - A string of departures by the U.S. military's allies in Iraq is turning into an exodus as violence subsides and the end of a U.N. mandate permitting their deployment to the country approaches.

India warns all options open with Pakistan after Mumbai attacks (AFP)

AFP - India on Wednesday warned that all options were open in dealing with Pakistan after last week's attacks on Mumbai, as the United States pressured Islamabad to show urgent cooperation with the probe.

Some 100 countries sign ban on cluster bombs (AFP)

AFP - Some 100 nations put their names Wednesday to a landmark treaty banning cluster bombs, amid calls for major arms producers such as China, Russia and the United States to join them.

Deleting and Destroying Data Forever

Personal Technology Personal Technology