Simson Garfinkel
Simson Garfinkel是一个新闻记者、企业家,也是计算机安全方面的权威人士。Sandstorm公司总部位于波士顿,主要业务是开发超级计算机安全工具,而Garfinkel是这家公司的首席技术官。同时他也是《Technology Review Magazine》的专栏作家,并且曾经在《计算机世界》、《财富》杂志、《纽约时代》上发表了50多篇文章,并曾经编写过《Database Nation》、《PGP:Pretty Good Privacy》,还有六本其他方面的书。并且同Gene Spafford合著了《Practical UNIX& Internet Security》。
Gene Spafford
Gene Spafford是美国普度大学的教授、CERIAS的董事,CERIAS是有关信息安全领域方面的世界第一的综合学科中心。Spaf是AAAS、ACM和IEEE的成员,并且由于其在信息安全方面的研究和教学获得了国家计算机系统安全奖项、NCISSE的William Hugh Murray奖章,被选入ISSA名人堂,普度的Charles Murphy奖。他是CISSP,2000年的荣誉者。他与人合著了《Practical Unix & Internet Security》一书,并且是《Compuer Crime:A Crimefighters Handbook》的编辑顾问。
The animal on the cover of Web Security,Privacy &Commerce,Second Edition is a whale shark.Sharks have lived on the Earth for over 300 million years,and populate all the oceans of the world (as well as some freshwater lakes and rivers).They are related to skates and rays,differing from ordinary bony fish in having a cartilaginous skeleton that makes their bodies unusually flexible.Unlike bony fish,sharks give birth to live young,in small litters.
A common misconception about sharks is that they need to keep swimming at all times.While they do need to move their fins constantly in order to stay afloat,many species of sharks like to rest on the bottom of the ocean floor.
Sharks make excellent predators because of their well-developed sensory system (not to mention their big,sharp teeth).They have excellent eyesight and an unusually keen sense of smell;they are known to be able to locate prey from a single drop of blood.
Sharks can also sense electrical currents in the water indicating the presence of other fish.They retain several rows of teeth,which roll outward to replace those that are lost.
The whale shark,on the other hand,is a kinder,gentler shark.Whale sharks (Rhinocodon typus )have a large flat head,a wide mouth,and tiny teeth.As a filter feeder,they feed primarily on plankton and small fish.They have distinctive spotted markings on their fins and dorsal sides.Whale sharks are so named because of their size:they may weigh more than 18 metric tons and measure up to 60 feet long.They are the largest species of fish alive today.
Whale sharks live in tropical and temperate seas.They pose little or no risk to humans.In fact,whale sharks are considered a particular treat to divers,since they are impressive in size but are slow-moving and not aggressive.