Altieres Rohr

Altieres Rohr

Altieres Rohr is the founder and editor-in-chief of Linha Defensiva. He also writes for G1, one the largest news websites in Brazil, where his column is called "Digital Security". Despite learning web programming in ColdFusion at the age of 14, he's now a journalist who writes code for people in languages called "Portuguese" and "English".

Definitions become useless as malicious code gets flexible. (Photo: Ines Teijeiro / SXC)

The missing computer ‘virus’ or ‘how everything is a backdoor’

Old definitions of malicious code no longer serve any purpose.
But people still think of ‘virus’ as the umbrella term.

User agent used by Safari on OS X disables internet banking security. (Photo: Marcelo Terraza/SXC)

Keylogger attempts to bypass bank security with user agent hack

Bank does not require some users to install a security software.
Internet Explorer’s user agent is changed to match Chrome’s on OS X.

Cybercriminals steal frequent-flyer program points to get car fuel

Cybercriminals steal frequent-flyer program points to get car fuel

Points are stolen through phishing and password-stealing malware.
Step-by-step guide teaches hackers how to trade them for gas.

Battle.net security question form

The real security question: which ‘security question’ is secure?

Answers to most ‘security questions’ are no secret.
Companies need to rethink password recovery mechanisms.

Gamblers accused of bribery thought Sprint Nextel phones were untappable

Gamblers accused of bribery thought Sprint Nextel phones were untappable

Used in Brazil, they formed a ‘Nextel Club’ of ‘untappable’ phones.
Police wiretapped the phones without difficulty.

Linha Defensiva's shield.

Defending your computer from internet threats: the defensive line

We’ve been around for over seven years – if you knew Portuguese, that is. But we think we can speak English now.