Fast and reliable data backup to the cloud

One of the most problematic tasks for a regular user is a backup under Windows, which would ensure the closure of the following questions:
 
 
 
fast (ideally in the background);
 
would save both the current version of the files, and the previous ones;
 
The file vault would not be accessible to viruses or natural disasters such as the destruction of a carrier or its theft;
 
the content of the backup copy would be accessible only to the user, i.e. was password-protected.
 
 
There are many suggestions for this, but none of them does the task completely. Easy easy copying does not give speed...
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The presentation in a million: investor deck, which attracted $ 100 million for Square

This presentation for investors (investor deck) helped to attract $ 100 million investment in round C of the company Square Jack Dorsey, the founder of Twitter. Therefore, it has good karma and it will help attract investments into your project.
 
 
The presentation in a million: investor deck, which attracted $ 100 million for Square  
 
I redraw this presentation and now I have a file in Keynote /PowerPoint that startups could use as a template for their presentations to investors. The key slides of the presentation are under the cut.
 
 

Structure of slides


 
Here are all the slides of the presentation in order:
 
 
The Square Proposition - a unique trading ...[/h]
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A memory test that kills laptops is almost a detective story

Recently we had a heartbreaking story - in one morning two Lenovo T500 laptops died. He would have died alone - no one to understand did not. But two in one morning is too much! Moreover, at least one of them (and this is confirmed by three users!) Worked normally until the last minute, was turned off by the power button, moved for 100 meters into a conversation and did not turn on.
 
Naturally, all the handicraft methods of resuscitation were tested first: replace the battery, replace the power adapter Remove the battery and de-energize, reset CMOS and so on Result? Exactly zero - the laptops ...
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What changes have come to the PCI DSS standard, who will they affect and what does this need to know about

Security Payment Card Industry Security Council (PCI SSC) has published revision of the PCI DSS standard ???. As the representatives of the organization noted, this release includes only small details, but it is a preparatory stage before the release of the new version of the standard, which is expected in 2020. What is and what was done, we tell below.
 
 
What changes have come to the PCI DSS standard, who will they affect and what does this need to know about

 
/photo Blue Coat Photos CC
 
 

What and why changed


 
Just note that there ...[/h]
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ReactOS became self-sufficient in the year of its 21st anniversary

Hello, Habr! We have sudden news!
 
 
ReactOS became self-sufficient in the year of its 21st anniversary

 
Pierre Shvetser, one of the main developers of the operating system ReactOS, made in his twitter the resonant message is . Now new builds of the operating system can be collected, using only the tools of this OS and its official build environment RosBE. The assembly environment itself is also built from the sources when the assembly script is run for the first time.
 
 
Thus, the ReactOS OS has reached a state called Self-Hosted . It is symbolic that this event occurs at a time when the project...
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Virgin Orbit - a new player in the market of inexpensive suborbital carrier rockets

Virgin Orbit - a new player in the market of inexpensive suborbital carrier rockets  
 
The company Virgin Orbit, as you can already guess by name - one of the divisions of the corporation Virgin Group , the permanent head of which is Sir Richard Branson. The company was founded about a year ago, but so far few people have heard of it. She is engaged in the development of a technology for delivering light satellites to the Earth's low orbit.
 
 
The satellite launching scheme looks like this: the aircraft takes out a small rocket to a height of about 11 km, from where it starts and goes into space, bringing satellites into orbit. The rocket operates on purified aviation kerosene...
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Memory of water, "how to charge water on TV" and other myths about living and dead water

Memory of water, "how to charge water on TV" and other myths about living and dead waterProfessional journalist, cynic and author of lectures on "The art of being a scoundrel", besides - the famous Petersburger, Alexander Nevzorov, likes to ridicule those who say: "In the USSR there was the best education in the world". No, the journalist does not deny the quality of knowledge given by the Soviet scientific school. But as if casually recalls how in the late 80's - early 90's the students of the "classical Soviet school" massively treated the illnesses on the television shows of Anatoly Kashpirovsky and charged the water with the passages of Alan Chumak.
 
 
Despite all the openness ...
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Microsoft flooded the data center in the North Sea for 5 years

Microsoft flooded the data center in the North Sea for 5 years  
 
The data center is project Natick company Microsoft successfully immersed on the seabed near the Orkney Islands (Scotland) in the North Sea. At a depth of 35.7 meters, it will work for five years, sending data over the fiber channel to the shore, if nothing breaks.
 
 
The main idea of ​​underwater data centers is saving on cooling and land leasing. Mainly, on cooling. Data centers consume a huge amount of electricity (420 terawatts, that is, ? almost 3.5% of the world's energy consumption is in data centers), and 15-20% of this ...
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Competition HackBattle 2.0 on Positive Hack Days: how they attacked the ICO school canteen

Competition HackBattle 2.0 on Positive Hack Days: how they attacked the ICO school canteen
 
 
In May of last year, the HackBattle competition was held for the first time at the Positive Hack Days VII. Our stand attracted much attention of the audience. Then almost 100 specialists in information security took part in the competition, and so many spectators came to see the finale in the big hall, that it was impossible to push through to the stage (for details, in last year's report ). Encouraged by such interest from the professional community, we decided to host HackBattle 2.0 on PHDays 8. We tell you how the competition was held ...
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The Messenger of Everything

All existing instant messengers have their pros and cons, but each of them pulls the blanket on its side because of its incompatibility with others - and this hurts users.
 
A single standard could be XMPP, but it, unlike E-Mail, appeared relatively late and did not have enough time to gain enough audience so that corporations could not abandon it. After all, they quickly realized that without holding an audience inside their own ecosystem, there was not much to gain. And besides, we must admit that XMPP had enough flaws due to the abundance of extensions, many of which, despite their importance...
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