This Week's Top Stories Yahoo CEO stired controversy with her move to take away the flexible working arrangements that many employees depended on. | The personal details of almost 50,000 internet users were exposed online after the ABC's main website was hacked. | ASHER MOSES | With Yahoo and Google sledging teleworking as slow and detrimental to work quality and creativity, has working from home lost its lustre? | Matthew Hall | Just an hour into the opening session of tech conference and Kathy Brown let out a sigh. | Security BEN GRUBB | More than half of the "hashed" passwords exposed in a breach of about 50,000 accounts on the ABC's website have been cracked. | Jim Finkle | A computer security firm says it has freed tens of thousands of infected PCs from a botnet. | Raphael Satter | The sophisticated cyber weapon that targeted an Iranian nuclear plant is older than previously believed, Symantec said. | Syrian activists have claimed credit for hacking a Twitter account of French news agency Agence France-Presse. | Public Sector Peter Jean and Lisa Cox | The Canberra Hospital will push ahead with new computer security measures designed to help prevent a repeat of the emergency department data-doctoring scandal. | TONY MOORE | Brisbane City Council's decision to outsource jobs to an overseas company sets a dangerous precedent, the opposition said. | Sylvia Pennington | Is a shake-up finally looming for Queensland's ICT? | Trevor Clarke | Federal Government expected to approve mobility strategy for 100 agencies and 168,000 public servants. | TONY MOORE | Angry and demoralised BCC IT workers who will lose their jobs to an Indian company protested to let councillors know their true feelings. | | | Advertisement Business IT Start-up Sylvia Pennington | A quick guide on how to get a stranger to give you $300,000 in 10 minutes or less. Telecommuting Marissa Mayer's ban on telecommuting sparked outrage, but left many in Silicon Valley wondering what the fuss was about. Mobility Drew Turney | Cognitive radio makes better use of the available radio-frequency spectrum to shift wi-fi services to frequencies where there isn't as much traffic. M-payments Your next Galaxy S smartphone might also be your Visa card, as giants collaborate to speed up NFC. LIA TIMSON | MasterCard took another step towards digital cash with a short-cut for online payments using any credit card. Advertisement More Regulation Foo Yun Chee | EU competition regulators plan to fine Microsoft before the end of March, sources say. Deals Online advertising tools may help monetisation of social network, while it relieves Microsoft of a burden. AGM Michael Liedtke | Tim Cook sought to reassure shareholders worried about Apple's sagging stock price that the company is on the verge of inventing more breakthrough products. Investment Gerry Shih | Billionaire Larry Ellison can now afford to fly commercial - on his own commercial airline, that is. Retail Salvador Rodriguez | The head of Google's Android mobile operating system says the company has no plans to open retail stores. |