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Parallels Desktop 18 for Mac adds ProMotion support

news.movim.eu / ArsTechnica · Tuesday, 9 August, 2022 - 19:30

Enlarge / A marketing splash image for Parallels Desktop 18, from the company's YouTube video about the release. (credit: Parallels )

Mac-based virtualization software Parallels launched a new version today. As with most updates to the suite, Parallels Desktop 18 adds support for new Apple hardware features, improves Windows virtualization, and expands compatibility.

The two headlining features of Parallels Desktop 18 are ProMotion support and several new features and optimizations for playing Windows games on Macs.

The first feature is pretty straightforward: Parallels now fully supports automatic refresh rate changes up to 120 Hz, matching the ProMotion feature in the M1-based 14-inch and 16-inch MacBook Pro .

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Diving deep into Briar (and Monal)

pubsub.movim.eu / berlin-xmpp-meetup · Friday, 8 October, 2021 - 18:05 edit

Diving deep into Briar (and Monal)

We are very happy to have Nico Alt from The Briar Project with us, who will give a talk Diving deep into Briar: a closer look at its internals If everything works well, the talk will be streamed over media.ccc.de. Briar is a secure messaging technology based on peer-to-peer communications with no centralized servers.

Also we will welcome a special guest, Thilo Molitor‎ from Monal, who will explain how Monal works and can answer questions. Monal is a "fast, friendly and free" Jabber/XMPP client for iOS and MacOS.

When? Wednesday, 2021-10-13 18:00 CEST (always 2ⁿᵈ Wednesday of every month)

Where?xHain hack+makespace, Grünberger Str. 16, 10243 Berlin (as formerly)

See you then!

If you watch the live stream, you may ask questions in our non-physical room (xmpp:berlin-meetup@conference.conversations.im?join). Streaming URL and other information will also be passed there.

#jabber #xmpp #community #xhain #freesoftware #berlin #meetup #federation #briar #securemessaging #monal #ios #macos

UPDATED COVID-19 RULES: To enter xHain, you must be fully vaccinated against Covid-19 or recovered ("2G"), with certificate. See Hygiene concept xHain.

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The world’s second-most popular desktop operating system isn’t macOS anymore

Samuel Axon · news.movim.eu / ArsTechnica · Wednesday, 17 February, 2021 - 22:27

Enlarge / Just a few of the Chromebooks we've reviewed and tested in recent years. (credit: Valentina Palladino )

For ages now, every annual report on desktop operating system market share has had the same top two contenders: Microsoft's Windows in a commanding lead at number one, and Apple's macOS in distant second place. But in 2020, Chrome OS became the second-most popular OS, and Apple fell to third.

That's according to numbers by market data firm IDC, and a report on IDC's data by publication GeekWire. Chrome OS had passed macOS in briefly in individual quarters before, but 2020 was the first full year where Apple's OS took third place.

Despite the fact that macOS landed in third, it might not be accurate to see this as an example of Google beating out Apple directly. Rather, it's likely that Chrome OS has been primarily pulling sales and market share away from Windows at the low end of the market. Mac market share actually grew from 6.7 percent in 2019 to 7.5 percent in 2020.

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Apple M1-native malware has already begun to appear

Jim Salter · news.movim.eu / ArsTechnica · Wednesday, 17 February, 2021 - 18:31 · 1 minute

Enlarge / GoSearch22 isn't, technically speaking, any sort of "virus." But it's certainly not anything you'd want on your shiny new M1 Mac. (credit: Pete Linforth )

Last year, Apple released Macbooks and Mac Minis powered by a new ARM CPU—the Apple M1. A few months later, malware authors are already targeting the new hardware directly. Wired interviewed Mac security research Patrick Wardle, who discovered an M1-native version of the long-running, Mac-targeted Pirrit adware family.

Apple M1, malware, and you

ARM CPUs have a very different Instruction Set Architecture (ISA) than traditional x86 desktop and laptop CPUs do, which means that software designed for one ISA can't run on the other without help. M1 Macs can run x86 software with a translation layer called Rosetta, but native M1 apps of course run much faster—as we can see by comparing Rosetta-translated Google Chrome to the M1 native version.

When it comes to malware, Apple users have long benefited from the minority status of their platform. Ten years ago, macOS's operating system market share was only 6.5 percent, and few malware authors bothered to target it at all—but today, that market share is approaching 20 percent. That increase in popularity has brought malware vendors along with it; the macOS malware ecosystem is still tiny and relatively crude compared to the one plaguing Windows, but it's very real.

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Mac utility Homebrew finally gets native Apple Silicon and M1 support

Samuel Axon · news.movim.eu / ArsTechnica · Friday, 5 February, 2021 - 21:47

Enlarge / Users can install Homebrew via the Terminal in macOS. (credit: Samuel Axon)

Popular Mac tool Homebrew has long been used by developers and others for package management on macOS, but as we lamented in our first M1 Mac review, it didn't support Apple Silicon when Apple's new Macs first launched late last year. Now, with the release of Homebrew 3.0.0, that's no longer the case: Homebrew now supports Apple Silicon natively, albeit not with every package.

The volunteer Homebrew team made the announcement on the Homebrew blog alongside today's release. While the native support is not yet comprehensive, it bridges the gap significantly, and users can still run Terminal via Rosetta 2 to do what they can't yet while running natively on Apple Silicon. The Homebrew blog post says "we welcome your help" in providing bottles for all packages moving forward.

Here's the full bullet point on Apple Silicon in the Homebrew 3.0.0 release notes:

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Un kext vulnérable pour apprendre à exploiter les OS d’Apple

Korben · news.movim.eu / Korben · Sunday, 31 January, 2021 - 08:00 · 1 minute

Connaissez-vous les kext sous macOS ? Il s’agit des Kernel Extensions… Si je devais prendre un GROS raccourci (On se calme les pinailleurs psychorigides !), je dirais que c’est un peu comme les drivers Windows ou les modules de noyau sous Linux.

Ça se charge avant le chargement complet de l’OS et ça permet d’agir de manière assez bas niveau sur le système. Bref, pour les adeptes du reverse engineering et de l’exploitation de macOS, le kext, c’est le nerf de la guerre.

C’est pourquoi le développeur ant4gonist a mis au point un kext pour iOS / macOS qui contient des vulnérabilités et permet ainsi d’apprendre à exploiter le noyau de macOS / iOS.

Voici les types de vulnérabilités proposées :

#define CRASH             0x1#define HEAP_OVERFLOW     0x2#define INFO_LEAK         0x3#define BUFFER_OVERFLOW   0x4#define USE_AFTER_FREE    0x5   //todo#define INTEGER_OVERFLOW  0x6   //todo#define DOUBLE_FETCH      0x7

La mise en place peut se faire simplement sous macOS, mais également sous iOS en utilisant checkra1n qui permet de jailbreaker l’appareil iOS.

Ensuite, y’a plus qu’à suivre la documentation se trouvant ici pour apprendre à exploiter l’OS proprement.

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Convertir un BIN + CUE en image ISO sous macOS

Korben · news.movim.eu / Korben · Friday, 22 January, 2021 - 08:00

J’ai retrouvé un vieux couple .BIN + .CUE qui peuvent être gravés sur CD mais étant sous Mac et n’ayant pas de graveur sous la main, je me suis dit que j’allais convertir ça en ISO. Voici la procédure, j’ai pensé que ça pourrait service.

Pour cela, je suis passé par Brew et j’ai installé l’utilitaire bchuck :

brew install bchunk

Puis j’ai converti mon BIN + CUE en ISO comme ceci :

bchunk image.bin image.cue image.iso

et voilà !

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Some Big Sur users are unable to update macOS due to an MDM bug

Jim Salter · news.movim.eu / ArsTechnica · Friday, 18 December, 2020 - 18:17

Some Big Sur users are unable to update macOS due to an MDM bug

Enlarge (credit: Apple)

Earlier this week, various macOS sysadmins began reporting that some Apple devices were failing to upgrade to Big Sur version 11.1. Affected users may briefly see the 11.1 upgrade, but then it disappears from the update UI and from the command line softwareupdate tool despite not having been installed.

Erroneous update request

Developer Victor Vrantchan, of the open source MicroMDM project, says he's found the problem. Some Macs are erroneously requesting 11.0.1 instead of 11.1 from Apple's update server—which update is then rejected if the machine in question is already running 11.0.1 or newer, as most such are.

Apple's update servers don't like it when you ask for a system update that's older than your currently installed version. (credit: Victor Vrantchan )

While the erroneous requests themselves are clear enough, the breaking condition is less so. According to Vrantchan, making the erroneous request "somehow corrupts the state of the software update process," resulting in a system that no longer presents the update as an option in System Preferences at all.

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Growl, once a staple of the Mac desktop experience, has been retired

Samuel Axon · news.movim.eu / ArsTechnica · Monday, 30 November, 2020 - 19:35

A Growl notification. (credit: Aurich Lawson )

Growl , a key part of the Mac desktop experience for 17 years, is being retired. Christopher Forsythe, who acted as the lead developer for the project for years, announced the retirement in a blog post on Friday.

Launched in 2004, Growl provided notifications for applications on Macs (it was also offered for Windows) before Apple introduced its own Notification Center. Notification Center was added to macOS (then styled Mac OS X) in the Mountain Lion update in 2012, but it first debuted on iOS a year earlier.

Here's a snippet of Forsythe's announcement:

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