Tag Archives: security

Cryptojacking. How Hackers use your browser for Crypto-Currency Mining

Reality update: [1803.02887v1] A first look at browser-based Cryptojacking …:

In this paper, we examine the recent trend towards in-browser mining of cryptocurrencies; in particular, the mining of Monero through Coinhive and similar code- bases. In this model, a user visiting a website will download a JavaScript code that executes client-side in her browser, mines a cryptocurrency, typically without her consent or knowledge, and pays out the seigniorage to the website.

A german university claims there’s child pornography in bitcoin’s blockchain

Looks like Child abuse imagery found within bitcoin’s blockchain | Technology | The Guardian is a good read …

“Researchers from the RWTH Aachen University, Germany found that around 1,600 files were currently stored in bitcoin’s blockchain. Of the files least eight were of sexual content, including one thought to be an image of child abuse and two that contain 274 links to child abuse content, 142 of which link to dark web services.”

DIVSI – a matter of Trust ?

Welcome to the DIVSI, the “German Institute for Trust and Security on the Internet”. This is what the website looks like in my browser, with Javascript, Cookies and all Trackers turned off. Would you trust them? It’s a government project, but still: Would you trust such a website? For once, working with experts would be nice. #sigh. I know, I am using wordpress here, but at least I am not pretending. #plonck.


Really Safer? Or just a feeling?

security theater meets bike

What people feel and what is actually true – that’s often not quite the same. Expecially when it comes to security, merely feeling safe sometimes seems to be more important than reality. As the blog “Erich sieht” shows that is true cycling as well. The British National Health Service NHS puts it in a very short sentence:

“Official figures taken from the NTS suggest that the general risk of injury from cycling in the UK is just 1 injury per 19,230 hours of cycling.”

“Erich sieht” does the math for you: A typical bycicle courier would need to work for ten years, 40 hours per week to suffer his first injury – statistically.