How to really erase personal data on Android

You thought to erase all the personal data from your Android smartphone with a "Hard reset"? Researchers have shown that even after this operation, the data is still there. 

Android smartphone

Perhaps if you ever sold or give your Android smartphone. In these cases, the procedure is to erase personal data by making a factory reset. All your information is supposed to be erased. Two Cambridge researchers have shown that much of the data is still present on the smartphone.

Sensitive data

They used various database recovery tools to scan portions of the storage space designated as empty. They were able to recover photos, passwords, chat portions, etc. This can pose serious problems if these sensitive data falling into the wrong hands.

Researchers say this persistence comes from the flash memory management that limits the number of times the storage blocks can be overwritten. A "hard reset" can thus designate deleted data without having crushed to extend the life span of the storage disk.

The solution

Do not panic. There is a simple way to solve this security problem on Android smartphones. The easiest way is to encrypt your data before performing a factory reset.

On the Android 3.0, you simply go to the settings of the smartphone and then the Security tab and then select the Encrypt option. This has not erased the data but if they are still present on the smartphone after a "reset", they are encrypted and therefore unreadable logically.

The researchers say it is better to choose a complicated password to deter hackers who wish to go further and use a decryption system.

Unlike Android smartphones, the iPhone does not suffer from this weakness. Since 2009 and the arrival of iOS 3.0, iPhone storage spaces are encrypted. The Apple smartphone even has a dedicated coprocessor these security measures.

Cambridge researchers reported working with Google to address security vulnerabilities and are satisfied with the progress made on Android 5.0.

Apple Watch can no longer raise the heart rate too regularly

The update of the Apple Watch can no longer raise the heart rate too regularly. Apple says that this change is intentional.

Apple Watch

The first Apple Watch firmware update arrived this week. If it has improved the responsiveness of the watch, it nevertheless caused a malfunction in the heart rate data record. Several sites, including 9to5Mac have indeed reported this concern.

Originally, before the arrival of the 1.0.1 version of OS Watch, the system of the watch recording the heart rate was determined in every 10 minutes. Since the update, it is not at all the case. Some users even claim that the display time of the heart rate is sometimes more than three hours. However, during physical activities and provided with applications for that, the sensor operates quite normally.

Apple just clarify this story explaining that this is actually an intentional modification. Thus, when the wearer of the watch which moves the arm is attached to the watch, it does not take care to raise the heart rate consistently. The latter, however, remains measured in the rest condition every ten minutes. Similarly Apple says that it remains possible to make a statement manually. However, this change suggests that Apple wanted to increase the autonomy of the shows that way.

Is this boy the new Spider-Man?

CASTING - They are no more than six candidates to succeed Andrew Garfield in the red and blue tights of Spider-Man. Topping the list, Asa Butterfield, we could see in "Hugo Cabret" and "Ender's Game".

Asa Butterfield

Who will be the next Spider-Man? Sony Pictures has decided to end his collaboration with director Marc Webb and actor Andrew Garfield, after the two parts of The Amazing Spider-Man , the studio decided to give a new blow to the iconic superhero fees. Which will be appearing in the upcoming Captain America: Civil War , before being the star of his own film, which will see Peter Parker back on school desks.

To embody this character rejuvenated, six young actors were tested on Saturday in Atlanta, in the presence of Kevin Feige, head of Marvel Studios, the former boss of Sony and now producer Amy Pascal, and Anthony and Joe directors Russo, in command Captain America: Civil War and the next two parts of the franchise Avengers .

spiderman

Six contenders for tights

The two best known are the British contenders Tom Holland, 18, ​​who played the son of Naomi Watts in The Impossible , and Asa Butterfield, 18 years too, of the former child star Hugo Martin Scorsese, that it has been recently again in Ender's Game . There are few days, the American press announced that he had already chosen before Sony mad.

The other four candidates are named Judah Lewis, Matthew Lintz, Charlie Plummer of the series Boardwalk Empire and Charlie Rowe. More than 1,500 young actors were auditioned by producers before that final list that should quickly determine the lucky one.

Enrique Iglesias cut his hand on a drone during a Concert

ACCIDENT - The Spanish singer was recovering on Sunday, May 31 in Los Angeles after injuring the hand with a drone at a concert in the Mexican city of Tijuana.

Enrique Iglesias

Enrique Iglesias nearly lost a hand in trying to please his fans. The singer was happening in front of thousands of spectators on Saturday, May 30 in Tijuana, Mexico, tried to catch the drone flying over the scene to provide the public with pictures closer in performance. But the singer has not entered correctly the unit that slipped his right hand, slashing him several fingers.


Enrique Iglesias was treated on site to stop the bleeding and decided to go back on stage to finish the show. His fans have posted on social networks hundreds of Pictures with the time of the accident, his bandage and his shirt stained with blood. The musician "was transferred to Los Angeles to be treated by a physician," said his agent Joe Bonilla in a statement.