Mats Karlsson

Maja Suslin/TT

Tech

Jeff Chiu / AP

Klarna

Klarna Partner

Rumman Amin/Unsplash

Shangri-La Hotels and Resorts (Chinese: 香格里拉酒店) is a multinational hospitality company. Founded in 1971 by tycoon Robert Kuok at Singapore, the company now has over 100 luxury hotels and resorts with over 40,000 rooms in Africa, Asia, Europe, the Middle East, North America and Australia. 
Shangri-La has 4 brands across different market segments: Shangri-La, Traders Hotels, Kerry Hotels and Hotel Jen. The company's head office is in Kerry Centre (嘉里中心), Quarry Bay, Hong Kong. The current chairman is Kuok Hui-kwong.



Shangri-La Hotels and Resorts

Jae C. Hong / AP

In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to a network. Denial of service is typically accomplished by flooding the targeted machine or resource with superfluous requests in an attempt to overload systems and prevent some or all legitimate requests from being fulfilled.In a distributed denial-of-service attack (DDoS attack), the incoming traffic flooding the victim originates from many different sources.  More sophisticated strategies are required to mitigate against this type of attack, as simply attempting to block a single source is insufficient because there are multiple sources.A DoS or DDoS attack is analogous to a group of people crowding the entry door of a shop, making it hard for legitimate customers to enter, thus disrupting trade.
Criminal perpetrators of DoS attacks often target sites or services hosted on high-profile web servers such as banks or credit card payment gateways. Revenge, blackmail and activism can motivate these attacks.

Denial-of-service attack

Mattias Sävenstrand

Lannebo

Lannebo Partner

ROB ENGELAAR

Los Angeles Unified School District (LAUSD) is a public school district in Los Angeles, California, United States. It is the largest (in terms of number of students) public school system in California and the 2nd largest public school district in the United States. Only the New York City Department of Education has a larger student population. During the 2020–2021 school year, LAUSD served 664,774 students, including 124,400 students at independent charter schools and 50,805 adult students. During the same school year, it had 25,088 teachers and 50,586 other employees. It is the second largest employer in Los Angeles County, after the county government. The revised school district operating budget for 2020–2021 was $8.55 billion. For the 2021-2022 school year, the budget increased to 13.8 billion, with much of the increase coming from state and federal funding to support COVID-19 relief efforts.The school district consists of Los Angeles and all or portions of several adjoining Southern California cities. LAUSD has its own police force, the Los Angeles School Police Department, which was established in 1948 to provide police services for LAUSD schools. The LAUSD enrolls a third of the preschoolers in Los Angeles County, and operates almost as many buses as the Los Angeles County Metropolitan Transportation Authority. The LAUSD school construction program rivals the Big Dig in terms of expenditures, and LAUSD cafeterias serve about 500,000 meals a day, rivaling the output of local McDonald's restaurants.LAUSD has been criticized in the past for extremely crowded schools with large class sizes, high drop-out and expulsion rates, low academic performance in many schools, poor maintenance and incompetent administration. In 2007, LAUSD's dropout rate was 26 percent for grades 9 through 12. More recently, there are signs that the district is showing improvement, both in terms of dropout and graduation rates. An ambitious renovation program intended to help ease the overcrowded conditions has been completed. As part of its school-construction project, LAUSD opened two high schools (Santee Education Complex and South East) in 2005 and four high schools (Arleta, Contreras Learning Complex, Panorama, and East Valley) in 2006.

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