Looks like Facebook & WhatsApp CDNs have been at least partially down. For example Facebook images are not showing. Just fee days ago Cloudflare was down. And also Google has taken a bite? Is it an outage season in US that affects peole all over world? Who broke all the social networks? So far there →
Linux PCs, Servers, Gadgets Can Be Crashed by ‘Ping of Death’ Network Packets writes that it is possible to crash and slow-down network-facing Linux servers, PCs, smartphones and tablets, and gadgets, by sending them a series of maliciously crafted packets. Netflix has published a security paper with many details. There are four vulnerabilities, three of →
Last week when I visited Arrow IoT summit I saw Bluetooth location services in use. Two booth on the even showed Bluetooth positioning in two compartments. Quuppa Oy showed their own Bluetooth-based indoor positioning technology, which is used in many applications. With its unique Angle-of-Arrival (AoA) method and positioning algorithms, the system enables real-time tracking of →
It seems that USA-China trade war has really started now: America was the land of free trade … precisely until it is not anymore. https://www.androidauthority.com/intel-qualcomm-huawei-988011/ Intel, Qualcomm, Broadcom, and Xilinx have reportedly moved to stop supplying Huawei. Google has also suspended business with Huawei in the wake of the ban. https://techcrunch.com/2019/05/20/several-chip-companies-including-qualcomm-and-intel-have-reportedly-stopped-supplying-huawei-after-blacklist/ According to Bloomberg, semiconductor →
I was listening an interesting presentation on monday at Helsinki on cyber security of under sea fiber optics cabling. The end result was that it is possible (not always easy or cheap, but technically possible for many countries) and often not illegal on international sea to listen to the traffic on those cables. There are →
https://www.schneier.com/blog/archives/2019/04/china_spying_on.html It seems that supply chain security is an insurmountably hard problem in Internet age. For years, the US and the Five Eyes seems to have had a monopoly on spying on the Internet around the globe. Now other countries seem to want in too. The recent focus on cyber security discussion has been a →
http://www.circleid.com/posts/20190407_internet_rfc_series_turn_50/We have just passed the fiftieth anniversary for the Internet “Request for Comments” (RFC) series which started in April 1969 with the publication of RFC1 titled “Host Software” authored by Stephen D. Crocker. — “Today, more than 8500 RFCs have been published, ranging across best practice information, experimental protocols, informational material, and, of course, Internet →
https://www.edn.com/electronics-blogs/5g-waves/4461754/Does-5G-pose-health-risks—part-1- There has been some talk about 5G and health risks that range from hardly anything to frying your brain and controlling the population. This interesting article series is exploring the health risks posed by mmWave radiation onto humans. Millimeter wave (mmWave) frequencies extend from 30 GHz to 300 GHz. From the literature, there can →
https://howdns.works/ep1/ A fun and colorful explanation of how DNS works. Hey there! We made this comic to explain what happens when you type a website address in your browser. →
https://blog.hackster.io/new-tech-secures-medical-devices-by-using-your-body-as-a-conduit-for-communication-8ca7b8128f67 The article says: “Virtually all wearable devices today communicate wirelessly through either Bluetooth, WiFi, or simple RF (Radio Frequency) signals. While we could try to make those more secure, there is always the possibility that they could be intercepted or spoofed. This new technology avoids the problem altogether by allowing devices to communicate across →