Unfortunately some people ignore the principles of “Open Source” and the GPL. Again I have to deal with an illegal copy of Periodical (also see Again an illegal copy of Periodical and Illegal copy of Periodical). This time it is called “Periods Tracker”, published by “joettaraubapps” (https://play.google.com/store/apps/details?id=com.joettaapps.periodstracker):
The procedure corresponds to the known pattern – one takes the sources, removes all references to the original and inserts advertising or offers the app as a paid version. I have already contacted “joettaraubapps” by e-mail and also sent a notice about a copyright infringement to Google.
As a reminder: The GPL is legally binding and derivative copies of my app must comply with certain conditions!
WhatsApp has a vulnerability (CVE-2019-3568) that allows unauthorized remote access to the device. The attacker can simply smuggle the spyware into a device through a WhatsApp call, even if the called party does not pick it up. Since Monday evening there is a patch.
Also, there were reports last year that WhatsApp will scan messages to show personalized ads, which is probably the case now.
These and several other events of this kind (I also recall the “Cambridge Analytica” scandal on Facebook) have kept me from installing and using WhatsApp on any of my devices and I will not do that in the future.
Those who use WhatsApp should be aware that you are potentially vulnerable. On the one hand WhatsApp’s source code is not open source, so no one knows what backdoors and security vulnerabilities exist, and on the other hand WhatsApp is also an attractive target for attacks due to the huge number of users.
Alternative to WhatsApp
As an alternative I can recommend “Signal”. This is a free messenger whose sources are also disclosed and which is also recommended by security experts. Even Edward Snowden uses and recommends this app. As with WhatsApp, the mobile number for logging in and contacting other people is sufficient, whereby the operator of Signal does not have access to this data and all messages are encrypted and can only be read by the persons involved.
With the permission of the sender I’m honored to publish a positive feedback about Periodical, thank you very much:
Dear Mr Welzel,
I just wanted to let you know, how much I am enjoying the Periodical app for the last three months. I was using the Flo once before, but it was kinda impractical and never gave me the right information, so after I’ve read how they handle their clients’ information, I was looking for an app that will actually work for me and I found Periodical. I really enjoy how it counts the average lenght of my cycle, how I can add almost any info about my period, the minimalistic design and how it can be easily worked with.
I just wanted to thank you for your work because it trully makes my everyday life much better. Keep up the good work :)
I have an older scanner – a Canon LiDE 210. Canon also provides drivers for Windows 10, but they cause the Windows WIA service to crash quite often. Therefore I decided to look for an alternative and tried VueScan – an application which comes with its own drivers.
Before installing VueScan I needed to uninstall the existing Canon software and the old driver and also tell Windows to remove the driver files as well, so the original driver would not be used any longer.
For synchronizing address books and calendars on my Android smartphone I’v been using DAVDroid for quite a while. It is Open Source and also available on F-Droid. However it is now called DAVx5 – why?
The reasons are explained in this tweet – using “droid” as part of a name violates a trademark of Lucasfilm. Also see this extensive article at Priceonomics. Therefore the creator of DAVDroid decided to change the name to “DAVxxxxx” and replace “xxxxx” by “x5” – even though the official statment says something different ;-).