Cyber criminals seem to be tying up emergency phone lines with phone-based DoS efforts, security experts report. Actually, TDoS has become a common weapon of annoyance and to extort cash from the targeted outfits, which are normally businesses and public service agencies.
According to the security experts, telephone DoS attacks use high volumes of automated calls in order to tie up target phone systems and halt both incoming and outgoing calls. Thus far, there have been plenty of such attacks, with their targets being mostly the administrative public safety answering point lines, but fortunately not the 911 emergency line. The point is that such offices were targeted because the attackers needed functional phone lines to carry out their attacks.
In the meanwhile, statistics reveal that many telephone-based attacks have targeted different businesses and public entities – for example, the financial sector, – as well as other public emergency operations interests, like air ambulance, ambulance and hospital communications.
So, what is the purpose of the attack? It seems that the attackers want to be paid protection money by the target entities. The scam scheme is quite simple: it normally starts with the companies getting a call from some “representative” of a purported payday loan company. During the conversation, a caller, in most cases speaking in a strong accent, demands payment of around $5,000 for an outstanding debt. After the caller is refused by the company, the perpetrator starts phone-based attacks, which can last for a few hours. Such attacks may stop for a while and then resume. Normally, once an entity is attacked, it might suffer random attacks over several weeks or even months.
In our days, the phone-based DoS attacks became so widespread because free IP-PBX software like Asterisk has become available. In addition, you can find online some computer-based call-generation instruments and easy-to-access SIP services. All this stuff makes it cheaper for the criminals to get their paws on such software and launch their extortion rackets even without much in the way of technical knowhow. Hopefully, the vital emergency services will remain unaffected by such scam efforts
According to the security experts, telephone DoS attacks use high volumes of automated calls in order to tie up target phone systems and halt both incoming and outgoing calls. Thus far, there have been plenty of such attacks, with their targets being mostly the administrative public safety answering point lines, but fortunately not the 911 emergency line. The point is that such offices were targeted because the attackers needed functional phone lines to carry out their attacks.
In the meanwhile, statistics reveal that many telephone-based attacks have targeted different businesses and public entities – for example, the financial sector, – as well as other public emergency operations interests, like air ambulance, ambulance and hospital communications.
So, what is the purpose of the attack? It seems that the attackers want to be paid protection money by the target entities. The scam scheme is quite simple: it normally starts with the companies getting a call from some “representative” of a purported payday loan company. During the conversation, a caller, in most cases speaking in a strong accent, demands payment of around $5,000 for an outstanding debt. After the caller is refused by the company, the perpetrator starts phone-based attacks, which can last for a few hours. Such attacks may stop for a while and then resume. Normally, once an entity is attacked, it might suffer random attacks over several weeks or even months.
In our days, the phone-based DoS attacks became so widespread because free IP-PBX software like Asterisk has become available. In addition, you can find online some computer-based call-generation instruments and easy-to-access SIP services. All this stuff makes it cheaper for the criminals to get their paws on such software and launch their extortion rackets even without much in the way of technical knowhow. Hopefully, the vital emergency services will remain unaffected by such scam efforts
অ্যান্ড্রয়েড অ্যাপ স্টোর, গুগল প্লেতে ছড়িয়ে পড়েছে ‘ব্যাডনিউজ’ নামের নতুন এক বাগ। বার্তা সংস্থা বিবিসি এক প্রতিবেদনে জানিয়েছে, সাইবার নিরাপত্তাবিষয়ক প্রতিষ্ঠান লুকআউট আবিষ্কার করেছে এই বাগটি। জনপ্রিয় ৩২টি অ্যাপে বাগটির উপস্থিতি আবিষ্কার করেছে লুকআউট।
যুক্তরাজ্যের এডিনবরায় এমন একটি ক্যামেরা তৈরি করা হয়েছে, যা এক কিলোমিটার দূরের কোনো বস্তুর ত্রিমাত্রিক ছবি তুলতে সক্ষম। বিবিসি জানিয়েছে, এডিনবরায় হেরিওট- ওয়াট ইউনিভার্সিটির পদার্থবিদদের তৈরি ক্যামেরাটি নির্দিষ্ট দূরত্বের মধ্যে প্রায় সব বস্তুকে লেজারের মাধ্যমে স্ক্যান করতে সক্ষম।
অবশেষে গ্যালাক্সি মেগা হ্যান্ডসেটের ঘোষণা দিয়েছে দক্ষিণ কোরিয়ান ইলেকট্রনিক্স জায়ান্ট স্যামসাং। প্রযুক্তি বিষয়ক সাইট টেকট্রি জানিয়েছে, ৬.৩ ইঞ্চি এবং ৫.৮ ইঞ্চি স্ক্রিনের দু’টি ভার্সনে পাওয়া যাবে গ্যালাক্সি মেগা। দু’টি স্মার্টফোনেই থাকবে ডুয়াল কোর প্রসেসর।
টাচস্ক্রিন হিসেবে কাগজ ব্যবহারের নতুন এক প্রযুক্তি উদ্ভাবন করেছে জাপানের অন্যতম শীর্ষ প্রযুক্তিপণ্য নির্মাতা ফুজিৎসু। প্রযুক্তি সংবাদবিষয়ক সাইট ম্যাশএবল জানিয়েছে, ফুজিৎসুর এই নতুন প্রযুক্তি শুধু কাগজে নয়, যে কোনো অসমতল পৃষ্ঠেও কাজ করবে।