Linux Fu: Alternative Shells

On Unix — the progenitor of Linux — there was /bin/sh. It was simple, by comparison to today’s shells, but it allowed you to enter commands and — most importantly — execute lists of commands. In fact, it was a simple programming language that could make decisions, loop, and …read more

Continue reading Linux Fu: Alternative Shells

Hospital warns 24,000 patients that its EMR system was hacked to mine cryptocurrency

Hackers are increasingly setting their sights on electronic medical records (EMR) to extort money from hospitals and their affiliated system vendors. Most recently, one hospital has seen its EMR service hijacked to mine cryptocurrency. On January 26, P… Continue reading Hospital warns 24,000 patients that its EMR system was hacked to mine cryptocurrency

Bitcoin hype pushes hackers to stash their money in lesser-known cryptocurrencies

Cybercriminals are increasingly moving away from bitcoin as their preferred digital currency in favor of lesser-known cryptocurrencies because of prolonged transaction delays, surging transaction costs and general market volatility, experts tell CyberScoop. Although cybercriminals have been slowly moving away from bitcoin for months, researchers say a noticeable shift towards alternative coins — such as Monero, Dash and ZCash — occurred when bitcoin’s value skyrocketed over $19,000 for one bitcoin in mid-December. The price has drastically fluctuated between $12,000 and roughly $19,000 since then. “Many cybercriminals emulate the operational best practices of legitimate businesses in order to minimize their overhead costs and maximize returns, and in the case of high transaction costs with bitcoin, it makes perfect sense to look at other coins with smaller overheads,” said Richard Henderson, a global security strategist with endpoint cybersecurity firm Absolute. Experts say this shift does not necessarily mean that criminals’ attention is fading from bitcoin, […]

The post Bitcoin hype pushes hackers to stash their money in lesser-known cryptocurrencies appeared first on Cyberscoop.

Continue reading Bitcoin hype pushes hackers to stash their money in lesser-known cryptocurrencies

Dash invites researchers to hack their blockchain

Thousands of security researchers will be incentivized to identify critical software vulnerabilities within Dash’s code and present them to the Dash Core Team for remediation. Commencing in August, Dash will employ a private bug bounty program through Bugcrowd, tapping into a curated, invite-only crowd to find Dash vulnerabilities, and then, in line with the rollout of Evolution, expand to a public program with over 60,000 registered security experts. The Dash bug bounty Jim Bursch, director … More Continue reading Dash invites researchers to hack their blockchain

Dash With Arduino

Amazon Dash is a handy service, and when Amazon released their AWS IoT platform, [Brian Carbonette] felt that it left out all the hardware hackers from the tinkering fun. Seeking justice, he put together a guide for an Arduino Dash button aimed at hardware hackers and those who are still easing into the world.

For his build, [Carbonette] used an Arduino MKR1000, laying out a few different configuration options for building your button. He has also gone to great lengths to help all comers tackle the Arduino-Dash API communication process by building an AmazonDRS Arduino Library, which handles …read more

Continue reading Dash With Arduino

33C3: Hunz Deconstructs the Amazon Dash Button

The Amazon Dash button is now in its second hardware revision, and in a talk at the 33rd Chaos Communications Congress, [Hunz] not only tears it apart and illuminates the differences with the first version, but he also manages to reverse engineer it enough to get his own code running. This opens up a whole raft of possibilities that go beyond the simple “intercept the IP traffic” style hacks that we’ve seen.

Just getting into the Dash is a bit of work, so buy two: one to cut apart and locate the parts that you have to avoid next time. …read more

Continue reading 33C3: Hunz Deconstructs the Amazon Dash Button

Amazon Dash Reboots Your Pi

We all know feature creep can be a problem in almost any project. A simple idea can often become unusable if a project’s scope isn’t clearly defined in the beginning. However, the opposite problem sometimes presents itself: forgetting to include a key feature. [Zach] had this problem when he built a Raspberry Pi magic mirror and forgot to build a physical reset/shutoff switch. Luckily he had a spare Amazon Dash button and re-purposed it for use with his Pi.

The Raspberry Pi doesn’t include its own on/off switch. Without installing one yourself, the only way to turn off the device …read more

Continue reading Amazon Dash Reboots Your Pi