Tomorrow's Online newspapers. 07-30-2013 | S

Caroline Criado-Perez helped lobby the Bank of England to make a woman, 19th century novelist Jane Austen, the new face on the country's 10 pound note, to defuse criticism that women were under-represented on the currency.

She was then "targeted repeatedly with rape threats" by ill-wishers objecting to her activity, according to an online petition, which called on Twitter to urgently add a 'report abuse' button to its service.

Some users proposed a one-day boycott of Twitter to protest against what they said was its failure to address the issue.

Twitter's General Manager for the UK Tony Wang promised to suspend all accounts found to be in breach of its rules.

Charlie Miller and Chris Valasek say they will publish detailed blueprints of techniques for attacking critical systems in the Toyota Prius and Ford Escape in a 100-page white paper, following several months of research they conducted with a grant from the U.S. government.

The two "white hats" - hackers who try to uncover software vulnerabilities before criminals can exploit them - will also release the software they built for hacking the cars at the Def Con hacking convention in Las Vegas this week.

They said they devised ways to force a Toyota Prius to brake suddenly at 80 miles an hour, jerk its steering wheel, or accelerate the engine. They also say they can disable the brakes of a Ford Escape traveling at very slow speeds, so that the car keeps moving no matter how hard the driver presses the pedal.

"Imagine what would happen if you were near a crowd," said Valasek, director of security intelligence at consulting firm IOActive, known for finding bugs in Microsoft Corp's Windows software.

But it is not as scary as it may sound at first blush.

They were sitting inside the cars using laptops connected directly to the vehicles' computer networks when they did their work. So they will not be providing information on how to hack remotely into a car network, which is what would typically be needed to launch a real-world attack.

The two say they hope the data they publish will encourage other white-hat hackers to uncover more security flaws in autos so they can be fixed.

"I trust the eyes of 100 security researchers more than the eyes that are in Ford and Toyota," said Miller, a Twitter security engineer known for his research on hacking Apple Inc's App Store.

Toyota Motor Corp spokesman John Hanson said the company was reviewing the work. He said the carmaker had invested heavily in electronic security, but that bugs remained - as they do in cars of other manufacturers.

"It's entirely possible to do," Hanson said, referring to the newly exposed hacks. "Absolutely we take it seriously."

Ford Motor Co spokesman Craig Daitch said the company takes seriously the electronic security of its vehicles. He said the fact that Miller's and Valasek's hacking methods required them to be inside the vehicle they were trying to manipulate mitigated the risk.

Egypt's ambulance service said 72 people were killed in Saturday's violence at a Cairo vigil by backers of deposed President Mohamed Mursi, triggering global anxiety that the Arab world's most populous country risked plunging into the abyss.

Mursi's Brotherhood, which won repeated elections after the fall of autocrat Hosni Mubarak in 2011, accuses the military of reversing the uprising that brought democracy to Egypt and demands his reinstatement.

"They will not be content until they bring back everything from the era of the corrupt, murderous security and intelligence state," senior Brotherhood official Essam el-Erian said on Facebook. "They've stepped up their efforts to do so by committing massacres never before seen in Egyptian history."

The Interior Ministry has rejected eyewitness accounts that police opened fire on the crowds and a public prosecutor has launched a probe into the violence, investigating 72 suspects for an array of crimes including murder and blocking streets.

Although Cairo was quiet on Sunday, violent clashes rattled the Suez Canal city of Port Said, with a 17-year-old youth killed in fighting between the pro- and anti-Mursi camps and a further 29 people injured, security sources said.

The violence has deeply polarized Egypt, with its secular and liberal elite so far showing little sympathy for the Brotherhood or reservations about the return to power of a military which ruled for 60 years before the 2011 uprising.

However, in one of the first signs of doubt from within the interim cabinet installed after the military takeover, Deputy Prime Minister for Economic Affairs Ziad Bahaa El-Din said the government must not copy the "oppressive" policies of its foes.

"Our position must remain fixed on the need to provide legal guarantees not only for the members of the Brotherhood, but for every Egyptian citizen. Excessive force is not permitted," El-Din wrote on Facebook.

And in another sign of unease, the Tamarud youth protest movement, which mobilized millions of people against Mursi and has fully backed the army, expressed alarm at an announcement by the interior minister that he was reviving the feared secret political police shut down after Mubarak was toppled.

"DEVOTED SON"

Saturday's killings took place the day after mass rallies called by military chief Abdel Fattah al-Sisi, who said he wanted public backing for a crackdown on "terrorism".

Thirteen ministers in Prime Minister Benj